IronPDF 與 XFINIUM.PDF：.NET 平台 HTML 轉 PDF 庫對比

XFINIUM.PDF 規範

IronPDF C# 庫的突出特點

使用 Visual Studio

Visual Studio 提供了 NuGet 套件管理器，用於在專案中安裝套件。 透過"專案"功能表或在"解決方案資源管理器"中右鍵單擊項目來存取它。

圖 1.使用 Visual Studio 中的"專案"功能表存取 NuGet 套件管理器

圖 2.在 Visual Studio 中使用上下文選單存取 NuGet 套件管理器

選定後，瀏覽並安裝 IronPDF 軟體包。

圖 3.使用 Visual Studio 中的 NuGet 套件管理器安裝 IronPDF 庫

使用開發者命令提示符

透過開發者命令提示字元安裝IronPDF NuGet 套件：

• 開啟開發者命令提示符

• 輸入以下命令：

  nuget install IronPdf

  nuget install IronPdf

  SHELL
• 按回車鍵
• 該軟體包會下載並安裝
• 重新載入 Visual Studio 項目

直接下載 NuGet 套件

直接從 NuGet 下載並安裝 IronPDF：

• 前往IronPdf NuGet 頁面
• 選擇下載包 按兩下下載的軟體包 該軟體包用於安裝
• 重新載入 Visual Studio 項目

透過下載庫檔案來安裝 IronPDF。

直接從IronPDF 下載頁面下載 IronPDF .DLL 檔案。

圖 4.從 IronPDF 網站下載 IronPDF 庫 DLL

在項目中引用該庫：

• 在解決方案資源管理器中以滑鼠右鍵按一下解決方案。
• 選擇參考文獻
• 瀏覽 IronPDF.dll 庫 按一下"確定"

IronPDF現在可以使用了。 接下來我們安裝 XFINIUM.PDF。

使用 IronPDF

// Create an instance of the ChromePdfRenderer
IronPdf.ChromePdfRenderer Renderer = new IronPdf.ChromePdfRenderer();

// Configure rendering options for better performance
Renderer.RenderingOptions.WaitFor.RenderDelay = 500; // Wait for JavaScript to load
Renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;

// Render a URL to PDF
using var Pdf = Renderer.RenderUrlAsPdf("___PROTECTED_URL_134___");

// Save the PDF with metadata
Pdf.MetaData.Author = "IronPDF";
Pdf.MetaData.Title = "Website to PDF Conversion";
Pdf.SaveAs("url.pdf");

// Create an instance of the ChromePdfRenderer
IronPdf.ChromePdfRenderer Renderer = new IronPdf.ChromePdfRenderer();

// Configure rendering options for better performance
Renderer.RenderingOptions.WaitFor.RenderDelay = 500; // Wait for JavaScript to load
Renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;

// Render a URL to PDF
using var Pdf = Renderer.RenderUrlAsPdf("___PROTECTED_URL_134___");

// Save the PDF with metadata
Pdf.MetaData.Author = "IronPDF";
Pdf.MetaData.Title = "Website to PDF Conversion";
Pdf.SaveAs("url.pdf");

// Create an instance of the ChromePdfRenderer
var Renderer = new IronPdf.ChromePdfRenderer();

// Configure rendering options
Renderer.RenderingOptions.MarginTop = 50; // millimeters
Renderer.RenderingOptions.MarginBottom = 50;
Renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;

// Render a simple HTML string to PDF
using var PDF = Renderer.RenderHtmlAsPdf("<h1>Html with CSS and Images</h1>");

// Add document properties
PDF.MetaData.Author = "Development Team";
PDF.MetaData.Keywords = "HTML, PDF, C#";
PDF.MetaData.ModifiedDate = DateTime.Now;

// Save the PDF
PDF.SaveAs("pixel-perfect.pdf");

// Load external HTML assets: images, CSS, and javascript
// An optional BasePath 'C:\site\assets\' is set as the file location to load assets from 
using var AdvancedPDF = Renderer.RenderHtmlAsPdf("<img src='icons/iron.png'>", @"C:\site\assets\");

// Apply security settings
AdvancedPDF.Password = "pass123";
AdvancedPDF.SecuritySettings.AllowUserPrinting = IronPdf.Security.PdfPrintSecurity.FullPrintRights;

// Save the advanced PDF with external assets
AdvancedPDF.SaveAs("html-with-assets.pdf");

// Create an instance of the ChromePdfRenderer
var Renderer = new IronPdf.ChromePdfRenderer();

// Configure rendering options
Renderer.RenderingOptions.MarginTop = 50; // millimeters
Renderer.RenderingOptions.MarginBottom = 50;
Renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;

// Render a simple HTML string to PDF
using var PDF = Renderer.RenderHtmlAsPdf("<h1>Html with CSS and Images</h1>");

// Add document properties
PDF.MetaData.Author = "Development Team";
PDF.MetaData.Keywords = "HTML, PDF, C#";
PDF.MetaData.ModifiedDate = DateTime.Now;

// Save the PDF
PDF.SaveAs("pixel-perfect.pdf");

// Load external HTML assets: images, CSS, and javascript
// An optional BasePath 'C:\site\assets\' is set as the file location to load assets from 
using var AdvancedPDF = Renderer.RenderHtmlAsPdf("<img src='icons/iron.png'>", @"C:\site\assets\");

// Apply security settings
AdvancedPDF.Password = "pass123";
AdvancedPDF.SecuritySettings.AllowUserPrinting = IronPdf.Security.PdfPrintSecurity.FullPrintRights;

// Save the advanced PDF with external assets
AdvancedPDF.SaveAs("html-with-assets.pdf");

使用 XFINIUM.PDF

使用 XFINIUM.PDF 建立空白 PDF 文件只需三行程式碼：建立文件、建立頁面、儲存：

// Create a new PDF document
PdfFixedDocument document = new PdfFixedDocument();

// Add a page to the document
PdfPage page = document.Pages.Add();

// Save the document as a PDF file
document.Save("empty.pdf");

// Create a new PDF document
PdfFixedDocument document = new PdfFixedDocument();

// Add a page to the document
PdfPage page = document.Pages.Add();

// Save the document as a PDF file
document.Save("empty.pdf");

新增文字內容需要三行額外的程式碼：建立字體、建立顏色畫筆和繪製文字：

// Create a new PDF document
PdfFixedDocument document = new PdfFixedDocument();
PdfPage page = document.Pages.Add();

// Create a standard font with Helvetica face and 24 point size
PdfStandardFont helvetica = new PdfStandardFont(PdfStandardFontFace.Helvetica, 24);

// Create a solid RGB red brush.
PdfBrush brush = new PdfBrush(PdfRgbColor.Red);

// Draw the text on the page.
page.Graphics.DrawString("Hello World", helvetica, brush, 100, 100);

// Save the document as a PDF file
document.Save("helloworld.pdf");

// Create a new PDF document
PdfFixedDocument document = new PdfFixedDocument();
PdfPage page = document.Pages.Add();

// Create a standard font with Helvetica face and 24 point size
PdfStandardFont helvetica = new PdfStandardFont(PdfStandardFontFace.Helvetica, 24);

// Create a solid RGB red brush.
PdfBrush brush = new PdfBrush(PdfRgbColor.Red);

// Draw the text on the page.
page.Graphics.DrawString("Hello World", helvetica, brush, 100, 100);

// Save the document as a PDF file
document.Save("helloworld.pdf");

此物件模型與 PDF 標準非常相似。 這種方法在建構複雜抽象概念（例如流程文件）方面具有明顯的優勢。 ## 如何建立可填寫 PDF 文件

使用 XFINIUM.PDF

XFINIUM.PDF 允許您建立新的 PDF 表單和填寫現有的 PDF 表單。

每種 PDF 表單欄位類型都有一個對應的類別：

• PdfTextBoxField – 文字方塊字段
• PdfCheckBoxField – 複選框
• PdfRadioButtonField – 單選按鈕集
• PdfComboboxField – 組合框
• PdfListboxField – 列錶框
• PdfPushbuttonField – 按鈕
• PdfSignatureField – 簽名字段

若要建立表單字段，請指定字段名稱和頁面位置。 建立欄位物件後，將其新增至頁面並設定其屬性：

// Create a text box field named "firstname"
PdfTextBoxField firstNameTextBox = new PdfTextBoxField("firstname");

// Add the field to a PDF page
pdfpage.Fields.Add(firstNameTextBox);

// Set the position of the field on the PDF page
firstNameTextBox.Widgets[0].VisualRectangle = new PdfVisualRectangle(150, 45, 200, 20);

// Create a text box field named "firstname"
PdfTextBoxField firstNameTextBox = new PdfTextBoxField("firstname");

// Add the field to a PDF page
pdfpage.Fields.Add(firstNameTextBox);

// Set the position of the field on the PDF page
firstNameTextBox.Widgets[0].VisualRectangle = new PdfVisualRectangle(150, 45, 200, 20);

若要填寫現有的 PDF 表單，請將其載入到PdfFixedDocument物件中。 文件的欄位集合會自動填入。 您可以按索引或名稱查找字段，並透過設定值屬性來填充它們：

// Load an existing PDF document with forms
PdfFixedDocument document = new PdfFixedDocument("form.pdf");

// Fill form fields with values
(document.Form.Fields["firstname"] as PdfTextBoxField).Text = "John";
(document.Form.Fields["lastname"] as PdfTextBoxField).Value = "Doe";
(document.Form.Fields["sex"].Widgets[0] as PdfRadioButtonWidget).Checked = true;
(document.Form.Fields["firstcar"] as PdfComboBoxField).SelectedIndex = 0;
(document.Form.Fields["secondcar"] as PdfListBoxField).SelectedIndex = 1;
(document.Form.Fields["agree"] as PdfCheckBoxField).Checked = true;

// Save the filled form as a new PDF file
document.Save("form_filled.pdf");

// Load an existing PDF document with forms
PdfFixedDocument document = new PdfFixedDocument("form.pdf");

// Fill form fields with values
(document.Form.Fields["firstname"] as PdfTextBoxField).Text = "John";
(document.Form.Fields["lastname"] as PdfTextBoxField).Value = "Doe";
(document.Form.Fields["sex"].Widgets[0] as PdfRadioButtonWidget).Checked = true;
(document.Form.Fields["firstcar"] as PdfComboBoxField).SelectedIndex = 0;
(document.Form.Fields["secondcar"] as PdfListBoxField).SelectedIndex = 1;
(document.Form.Fields["agree"] as PdfCheckBoxField).Checked = true;

// Save the filled form as a new PDF file
document.Save("form_filled.pdf");

使用 IronPDF

以下是如何使用 IronPDF建立可填寫 PDF 的方法：

// PM> Install-Package IronPdf
using IronPdf;
using IronPdf.Rendering;

// Step 1. Creating a PDF with editable forms from HTML using form and input tags
var FormHtml = @"
<html>
    <head>
        <style>
            body { font-family: Arial, sans-serif; margin: 40px; }
            h2 { color: #333; }
            form { background: #f4f4f4; padding: 20px; border-radius: 8px; }
            input[type='text'] { 
                width: 100%; 
                padding: 8px; 
                margin: 10px 0;
                border: 1px solid #ddd;
                border-radius: 4px;
            }
            input[type='checkbox'] { margin-right: 10px; }
            select { width: 100%; padding: 8px; margin: 10px 0; }
        </style>
    </head>
    <body>
        <h2>Editable PDF Form</h2>
        <form>
          First name:<br> <input type='text' name='firstname' value=''> <br>
          Last name:<br> <input type='text' name='lastname' value=''>
          <br><br>
          Email:<br> <input type='text' name='email' value=''>
          <br><br>
          Subscribe to newsletter: <input type='checkbox' name='newsletter' value='yes'>
          <br><br>
          Country: 
          <select name='country'>
              <option value='usa'>United States</option>
              <option value='uk'>United Kingdom</option>
              <option value='canada'>Canada</option>
          </select>
        </form>
    </body>
</html>";

// Create a PDF renderer with form creation enabled
IronPdf.ChromePdfRenderer Renderer = new IronPdf.ChromePdfRenderer();
Renderer.RenderingOptions.CreatePdfFormsFromHtml = true;
Renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Print;
Renderer.RenderingOptions.MarginTop = 20;
Renderer.RenderingOptions.MarginBottom = 20;

// Render the HTML as a PDF and save it
var pdfDocument = Renderer.RenderHtmlAsPdf(FormHtml);
pdfDocument.SaveAs("BasicForm.pdf");

// Step 2. Reading and Writing PDF form values.
var FormDocument = PdfDocument.FromFile("BasicForm.pdf");

// Get form field collection
var form = FormDocument.Form;

// Set and Read the value of the "firstname" field
var FirstNameField = form.FindFormField("firstname");
FirstNameField.Value = "Minnie";
Console.WriteLine("FirstNameField value: {0}", FirstNameField.Value);

// Set and Read the value of the "lastname" field
var LastNameField = form.FindFormField("lastname");
LastNameField.Value = "Mouse";
Console.WriteLine("LastNameField value: {0}", LastNameField.Value);

// Set email field
var EmailField = form.FindFormField("email");
EmailField.Value = "minnie.mouse@example.com";

// Set checkbox
var NewsletterField = form.FindFormField("newsletter");
NewsletterField.Value = "yes";

// Set dropdown selection
var CountryField = form.FindFormField("country");
CountryField.Value = "usa";

// Save the form with filled values
FormDocument.SaveAs("FilledForm.pdf");

// Step 3. Flattening the form (making it non-editable)
FormDocument.Form.Flatten();
FormDocument.SaveAs("FlattenedForm.pdf");

// PM> Install-Package IronPdf
using IronPdf;
using IronPdf.Rendering;

// Step 1. Creating a PDF with editable forms from HTML using form and input tags
var FormHtml = @"
<html>
    <head>
        <style>
            body { font-family: Arial, sans-serif; margin: 40px; }
            h2 { color: #333; }
            form { background: #f4f4f4; padding: 20px; border-radius: 8px; }
            input[type='text'] { 
                width: 100%; 
                padding: 8px; 
                margin: 10px 0;
                border: 1px solid #ddd;
                border-radius: 4px;
            }
            input[type='checkbox'] { margin-right: 10px; }
            select { width: 100%; padding: 8px; margin: 10px 0; }
        </style>
    </head>
    <body>
        <h2>Editable PDF Form</h2>
        <form>
          First name:<br> <input type='text' name='firstname' value=''> <br>
          Last name:<br> <input type='text' name='lastname' value=''>
          <br><br>
          Email:<br> <input type='text' name='email' value=''>
          <br><br>
          Subscribe to newsletter: <input type='checkbox' name='newsletter' value='yes'>
          <br><br>
          Country: 
          <select name='country'>
              <option value='usa'>United States</option>
              <option value='uk'>United Kingdom</option>
              <option value='canada'>Canada</option>
          </select>
        </form>
    </body>
</html>";

// Create a PDF renderer with form creation enabled
IronPdf.ChromePdfRenderer Renderer = new IronPdf.ChromePdfRenderer();
Renderer.RenderingOptions.CreatePdfFormsFromHtml = true;
Renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Print;
Renderer.RenderingOptions.MarginTop = 20;
Renderer.RenderingOptions.MarginBottom = 20;

// Render the HTML as a PDF and save it
var pdfDocument = Renderer.RenderHtmlAsPdf(FormHtml);
pdfDocument.SaveAs("BasicForm.pdf");

// Step 2. Reading and Writing PDF form values.
var FormDocument = PdfDocument.FromFile("BasicForm.pdf");

// Get form field collection
var form = FormDocument.Form;

// Set and Read the value of the "firstname" field
var FirstNameField = form.FindFormField("firstname");
FirstNameField.Value = "Minnie";
Console.WriteLine("FirstNameField value: {0}", FirstNameField.Value);

// Set and Read the value of the "lastname" field
var LastNameField = form.FindFormField("lastname");
LastNameField.Value = "Mouse";
Console.WriteLine("LastNameField value: {0}", LastNameField.Value);

// Set email field
var EmailField = form.FindFormField("email");
EmailField.Value = "minnie.mouse@example.com";

// Set checkbox
var NewsletterField = form.FindFormField("newsletter");
NewsletterField.Value = "yes";

// Set dropdown selection
var CountryField = form.FindFormField("country");
CountryField.Value = "usa";

// Save the form with filled values
FormDocument.SaveAs("FilledForm.pdf");

// Step 3. Flattening the form (making it non-editable)
FormDocument.Form.Flatten();
FormDocument.SaveAs("FlattenedForm.pdf");

首先，您需要建立一個包含 HTML 格式標籤的表單。 該庫可以處理儲存為 PDF 時的複雜情況。 表單值的讀取和寫入是透過FindFormField函數完成的。 您的應用程式可以立即使用此功能以程式設計方式填寫表單。

有關高級表單處理（包括數位簽章）的信息，請參閱"建立 PDF 表單"教學。

使用 XFINIUM.PDF

簽章域用於在 PDF 檔案中應用數位簽章（ PdfSignatureField類別）。 雖然簽章欄只出現在一頁上，但數位簽章會對整個文件進行簽章。

簽名過程使用PdfDigitalSignature物件來設定簽名屬性。 簽名是在根據 PDF 文件的二進位佈局保存文件時產生的。

PdfDigitalSignature為所有 XFINIUM 簽名提供基礎：

• PdfCmsDigitalSignature – CMS 標準簽名（繼承自PdfDigitalSignature ）
• PdfPadesDigitalSignature – PADES 標準簽名（繼承自PdfCmsDigitalSignature ）
• PdfInteractiveCmsDigitalSignature – 使用硬體智慧卡的CMS 簽名
• PdfInteractivePadesDigitalSignature – 支援硬體智慧卡的 PADES
• PdfDocumentTimeStamp – 文件級時間戳記（繼承自PdfDigitalSignature ）

使用 IronPDF

開發人員經常詢問如何使用 IronPDF 和 C# 以程式設計方式為 PDF 新增簽名。 這可能意味著：

• 從檔案中新增圖形簽名圖像 -採用加密簽章以防止竄改
• 添加帶有加密簽名的手寫簽名圖標

第一種方法是將簽名 PNG 圖片新增到現有的 PDF 頁面上。 可用於簽名或公司印章：

// Open an existing PDF document or create a new one
var Pdf = PdfDocument.FromFile(@"C:\Path\To\ASPX to PDF.pdf");

// Define an HTML stamp with a signature image
var SignatureStamp = new HtmlStamp()
{
    Html = "<img src='signature.png' />",
    Width = 150,
    Height = 50,
    Bottom = 300,
    Left = 85,
    ZIndex = HtmlStamp.StampLayer.OnTopOfExistingPDFContent
};

// Advanced stamp with styling
var StyledSignatureStamp = new HtmlStamp()
{
    Html = @"<div style='border: 2px solid #000; padding: 10px; background: rgba(255,255,255,0.9);'>
                <img src='signature.png' style='width: 120px;' />
                <p style='margin: 5px 0 0 0; font-size: 10px;'>Digitally Signed</p>
                <p style='margin: 0; font-size: 8px;'>{date}</p>
             </div>",
    Width = 150,
    Height = 100,
    Bottom = 50,
    Right = 50,
    ZIndex = HtmlStamp.StampLayer.OnTopOfExistingPDFContent
};

// Stamp the signature on the first page of the PDF
Pdf.StampHTML(SignatureStamp, 1);

// Or apply to all pages
Pdf.StampHTML(StyledSignatureStamp);

// Save the stamped PDF
Pdf.SaveAs(@"C:\Path\To\Stamped_PDF.pdf");

// Open an existing PDF document or create a new one
var Pdf = PdfDocument.FromFile(@"C:\Path\To\ASPX to PDF.pdf");

// Define an HTML stamp with a signature image
var SignatureStamp = new HtmlStamp()
{
    Html = "<img src='signature.png' />",
    Width = 150,
    Height = 50,
    Bottom = 300,
    Left = 85,
    ZIndex = HtmlStamp.StampLayer.OnTopOfExistingPDFContent
};

// Advanced stamp with styling
var StyledSignatureStamp = new HtmlStamp()
{
    Html = @"<div style='border: 2px solid #000; padding: 10px; background: rgba(255,255,255,0.9);'>
                <img src='signature.png' style='width: 120px;' />
                <p style='margin: 5px 0 0 0; font-size: 10px;'>Digitally Signed</p>
                <p style='margin: 0; font-size: 8px;'>{date}</p>
             </div>",
    Width = 150,
    Height = 100,
    Bottom = 50,
    Right = 50,
    ZIndex = HtmlStamp.StampLayer.OnTopOfExistingPDFContent
};

// Stamp the signature on the first page of the PDF
Pdf.StampHTML(SignatureStamp, 1);

// Or apply to all pages
Pdf.StampHTML(StyledSignatureStamp);

// Save the stamped PDF
Pdf.SaveAs(@"C:\Path\To\Stamped_PDF.pdf");

使用一行程式碼，透過 .pfx 和 .p12 X509Certificate2 數位憑證對PDF 檔案進行加密簽署：

// 123456 below represents the signature password
new IronPdf.PdfSignature("CertificateFile.p12", "123456").SignPdfFile("ASPX to PDF.pdf");

// Or with more control
var signature = new IronPdf.PdfSignature("CertificateFile.p12", "123456")
{
    SigningContact = "john@example.com",
    SigningLocation = "New York, USA",
    SigningReason = "Contract Agreement"
};

// Load the PDF
var pdf = PdfDocument.FromFile("contract.pdf");

// Sign and save
pdf.SignPdfWithDigitalSignature(signature);
pdf.SaveAs("signed-contract.pdf");

// 123456 below represents the signature password
new IronPdf.PdfSignature("CertificateFile.p12", "123456").SignPdfFile("ASPX to PDF.pdf");

// Or with more control
var signature = new IronPdf.PdfSignature("CertificateFile.p12", "123456")
{
    SigningContact = "john@example.com",
    SigningLocation = "New York, USA",
    SigningReason = "Contract Agreement"
};

// Load the PDF
var pdf = PdfDocument.FromFile("contract.pdf");

// Sign and save
pdf.SignPdfWithDigitalSignature(signature);
pdf.SaveAs("signed-contract.pdf");

這個進階範例將 .pfx / .p12 X509Certificate2 數位 ID 簽章與手寫簽章結合：

// Create a digital signature using a certificate file
var Signature = new IronPdf.PdfSignature("Iron.pfx", "123456");

// Render a PDF document to be signed
var Renderer = new ChromePdfRenderer();
Renderer.RenderingOptions.MarginBottom = 0;
Renderer.RenderingOptions.MarginTop = 0;
Renderer.RenderingOptions.EnableJavaScript = true;
Renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;

// Create PDF with security features
string html = @"<h1>Contract Agreement</h1>
                <p>This document is digitally signed and encrypted.</p>
                <p>Agreement Date: " + DateTime.Now.ToString("yyyy-MM-dd") + @"</p>";

PdfDocument doc = Renderer.RenderHtmlAsPdf(html);

// Configure optional signing options and a handwritten signature graphic
Signature.SigningContact = "support@ironsoftware.com";
Signature.SigningLocation = "Chicago, USA";
Signature.SigningReason = "To show how to sign a PDF";

// Load a handwritten signature image
Signature.LoadSignatureImageFromFile("handwriting.png");

// Advanced security: Set permissions
doc.SecuritySettings.AllowUserPrinting = IronPdf.Security.PdfPrintSecurity.NoPrint;
doc.SecuritySettings.AllowUserEdits = IronPdf.Security.PdfEditSecurity.NoEdit;
doc.SecuritySettings.AllowUserCopyPasteContent = false;

// Sign the PDF document with the digital signature
doc.SignPdfWithDigitalSignature(Signature);

// Add password protection
doc.Password = "userpassword";
doc.OwnerPassword = "ownerpassword";

// Save the signed PDF document
doc.SaveAs("Signed_ASPX_to_PDF.pdf");

// Create a digital signature using a certificate file
var Signature = new IronPdf.PdfSignature("Iron.pfx", "123456");

// Render a PDF document to be signed
var Renderer = new ChromePdfRenderer();
Renderer.RenderingOptions.MarginBottom = 0;
Renderer.RenderingOptions.MarginTop = 0;
Renderer.RenderingOptions.EnableJavaScript = true;
Renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;

// Create PDF with security features
string html = @"<h1>Contract Agreement</h1>
                <p>This document is digitally signed and encrypted.</p>
                <p>Agreement Date: " + DateTime.Now.ToString("yyyy-MM-dd") + @"</p>";

PdfDocument doc = Renderer.RenderHtmlAsPdf(html);

// Configure optional signing options and a handwritten signature graphic
Signature.SigningContact = "support@ironsoftware.com";
Signature.SigningLocation = "Chicago, USA";
Signature.SigningReason = "To show how to sign a PDF";

// Load a handwritten signature image
Signature.LoadSignatureImageFromFile("handwriting.png");

// Advanced security: Set permissions
doc.SecuritySettings.AllowUserPrinting = IronPdf.Security.PdfPrintSecurity.NoPrint;
doc.SecuritySettings.AllowUserEdits = IronPdf.Security.PdfEditSecurity.NoEdit;
doc.SecuritySettings.AllowUserCopyPasteContent = false;

// Sign the PDF document with the digital signature
doc.SignPdfWithDigitalSignature(Signature);

// Add password protection
doc.Password = "userpassword";
doc.OwnerPassword = "ownerpassword";

// Save the signed PDF document
doc.SaveAs("Signed_ASPX_to_PDF.pdf");

要了解完整的安全實現，請查閱Ironsecuredoc 文檔，以了解高級文檔保護功能。 ## 各個函式庫如何處理現代 CSS 框架和 Bootstrap？

現代 Web 應用程式通常依賴 Bootstrap 等 CSS 框架來實現快速 UI 開發和響應式設計。 PDF 產生工具必須準確地保留這些框架佈局，以確保文件的專業品質。

IronPDF：完全支援 Bootstrap 框架

IronPDF 的 Chromium 渲染引擎完全支援現代 CSS 框架：

• Bootstrap 5：完全支援 Flexbox 和 CSS Grid 渲染，以及所有響應式元件
• Bootstrap 4：完整的卡片系統、導覽列和實用類
• Tailwind CSS：所有實用性優先的類別及其響應式變體
• Foundation 和其他框架：完全支援 CSS3，這意味著所有現代框架都能正常運作。 -進階 CSS： Flexbox、CSS Grid、自訂屬性、動畫和變換

實際驗證：Bootstrap 首頁和範本能夠以瀏覽器精確的保真度進行轉換。

程式碼範例：使用 Bootstrap Cards 進行活動行程安排

using IronPdf;

var renderer = new ChromePdfRenderer();

// Configure rendering for optimal Bootstrap output
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;
renderer.RenderingOptions.EnableJavaScript = true;
renderer.RenderingOptions.RenderDelay = 500; // Allow JS to fully load
renderer.RenderingOptions.ViewPortWidth = 1280; // Desktop viewport
renderer.RenderingOptions.MarginTop = 10;
renderer.RenderingOptions.MarginBottom = 10;
renderer.RenderingOptions.MarginLeft = 10;
renderer.RenderingOptions.MarginRight = 10;

string bootstrapSchedule = @"
<!DOCTYPE html>
<html>
<head>
    <link href='___PROTECTED_URL_135___ rel='stylesheet'>
    <style>
        @media print {
            .pagebreak { page-break-after: always; }
        }
    </style>
</head>
<body>
    <div class='container my-5'>
        <h1 class='text-center mb-5'>Tech Conference 2025 - Schedule</h1>

        <div class='row g-4'>
            <div class='col-md-6'>
                <div class='card border-primary'>
                    <div class='card-header bg-primary text-white d-flex justify-content-between align-items-center'>
                        <h5 class='mb-0'>Keynote Session</h5>
                        <span class='badge bg-light text-primary'>9:00 AM</span>
                    </div>
                    <div class='card-body'>
                        <h6 class='card-subtitle mb-2 text-muted'>Main Auditorium</h6>
                        <p class='card-text'><strong>The Future of AI in Software Development</strong></p>
                        <p class='card-text'>Join us for an exploration of how artificial intelligence is transforming the software development environment.</p>
                        <div class='d-flex align-items-center'>
                            <img src='___PROTECTED_URL_136___ class='rounded-circle me-2' alt='Speaker'>
                            <div>
                                <div class='fw-bold'>Dr. Sarah Chen</div>
                                <small class='text-muted'>AI Research Lead</small>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <div class='col-md-6'>
                <div class='card border-success'>
                    <div class='card-header bg-success text-white d-flex justify-content-between align-items-center'>
                        <h5 class='mb-0'>Workshop</h5>
                        <span class='badge bg-light text-success'>10:30 AM</span>
                    </div>
                    <div class='card-body'>
                        <h6 class='card-subtitle mb-2 text-muted'>Workshop Room A</h6>
                        <p class='card-text'><strong>Hands-On: Cloud-Native Architecture</strong></p>
                        <p class='card-text'>Learn practical techniques for building flexible, cloud-native applications with modern frameworks.</p>
                        <div class='d-flex align-items-center'>
                            <img src='___PROTECTED_URL_137___ class='rounded-circle me-2' alt='Speaker'>
                            <div>
                                <div class='fw-bold'>Michael Rodriguez</div>
                                <small class='text-muted'>Cloud Architect</small>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <div class='col-md-6'>
                <div class='card border-warning'>
                    <div class='card-header bg-warning text-dark d-flex justify-content-between align-items-center'>
                        <h5 class='mb-0'>Panel Discussion</h5>
                        <span class='badge bg-dark'>2:00 PM</span>
                    </div>
                    <div class='card-body'>
                        <h6 class='card-subtitle mb-2 text-muted'>Main Auditorium</h6>
                        <p class='card-text'><strong>Security in Modern Web Applications</strong></p>
                        <p class='card-text'>Industry experts discuss current security challenges and best practices for protecting user data.</p>
                        <small class='text-muted'>Featuring 4 industry experts</small>
                    </div>
                </div>
            </div>

            <div class='col-md-6'>
                <div class='card border-info'>
                    <div class='card-header bg-info text-white d-flex justify-content-between align-items-center'>
                        <h5 class='mb-0'>Technical Talk</h5>
                        <span class='badge bg-light text-info'>3:30 PM</span>
                    </div>
                    <div class='card-body'>
                        <h6 class='card-subtitle mb-2 text-muted'>Room B</h6>
                        <p class='card-text'><strong>Performance Optimization Strategies</strong></p>
                        <p class='card-text'>Deep dive into advanced techniques for improve application performance and reducing latency.</p>
                        <div class='d-flex align-items-center'>
                            <img src='___PROTECTED_URL_138___ class='rounded-circle me-2' alt='Speaker'>
                            <div>
                                <div class='fw-bold'>Alex Kim</div>
                                <small class='text-muted'>Performance Engineer</small>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class='pagebreak'></div>

        <h2 class='mt-5'>Additional Sessions</h2>
        <div class='table-responsive'>
            <table class='table table-striped'>
                <thead>
                    <tr>
                        <th>Time</th>
                        <th>Session</th>
                        <th>Speaker</th>
                        <th>Location</th>
                    </tr>
                </thead>
                <tbody>
                    <tr>
                        <td>11:45 AM</td>
                        <td>Lightning Talks</td>
                        <td>Various</td>
                        <td>Room C</td>
                    </tr>
                    <tr>
                        <td>1:00 PM</td>
                        <td>Networking Lunch</td>
                        <td>-</td>
                        <td>Cafeteria</td>
                    </tr>
                </tbody>
            </table>
        </div>
    </div>
</body>
</html>";

// Generate the PDF
var pdf = renderer.RenderHtmlAsPdf(bootstrapSchedule);

// Add metadata
pdf.MetaData.Author = "Tech Conference Team";
pdf.MetaData.Title = "Conference Schedule 2025";
pdf.MetaData.Subject = "Event Schedule";

// Save the PDF
pdf.SaveAs("conference-schedule.pdf");

// Example: Generate responsive invoice with Bootstrap
string bootstrapInvoice = @"
<!DOCTYPE html>
<html>
<head>
    <link href='___PROTECTED_URL_139___ rel='stylesheet'>
    <link href='___PROTECTED_URL_140___ rel='stylesheet'>
</head>
<body>
    <div class='container mt-5'>
        <div class='row'>
            <div class='col-12'>
                <div class='card'>
                    <div class='card-body'>
                        <div class='row mb-4'>
                            <div class='col-sm-6'>
                                <h2 class='text-primary'><i class='fas fa-file-invoice'></i> INVOICE</h2>
                                <p class='mb-1'><strong>Invoice #:</strong> INV-2025-001</p>
                                <p class='mb-1'><strong>Date:</strong> " + DateTime.Now.ToString("MMMM dd, yyyy") + @"</p>
                            </div>
                            <div class='col-sm-6 text-sm-end'>
                                <h4>Your Company Name</h4>
                                <p class='mb-1'>123 Business St</p>
                                <p class='mb-1'>City, State 12345</p>
                                <p>contact@company.com</p>
                            </div>
                        </div>

                        <hr>

                        <div class='row mb-4'>
                            <div class='col-sm-6'>
                                <h5>Bill To:</h5>
                                <p class='mb-1'><strong>Client Company</strong></p>
                                <p class='mb-1'>456 Client Ave</p>
                                <p>City, State 67890</p>
                            </div>
                        </div>

                        <div class='table-responsive'>
                            <table class='table table-bordered'>
                                <thead class='table-primary'>
                                    <tr>
                                        <th>Description</th>
                                        <th class='text-center'>Quantity</th>
                                        <th class='text-end'>Price</th>
                                        <th class='text-end'>Total</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    <tr>
                                        <td>Web Development Services</td>
                                        <td class='text-center'>40</td>
                                        <td class='text-end'>$150.00</td>
                                        <td class='text-end'>$6,000.00</td>
                                    </tr>
                                    <tr>
                                        <td>UI/UX Design</td>
                                        <td class='text-center'>20</td>
                                        <td class='text-end'>$125.00</td>
                                        <td class='text-end'>$2,500.00</td>
                                    </tr>
                                </tbody>
                                <tfoot>
                                    <tr>
                                        <td colspan='3' class='text-end'><strong>Subtotal:</strong></td>
                                        <td class='text-end'><strong>$8,500.00</strong></td>
                                    </tr>
                                    <tr>
                                        <td colspan='3' class='text-end'>Tax (10%):</td>
                                        <td class='text-end'>$850.00</td>
                                    </tr>
                                    <tr class='table-primary'>
                                        <td colspan='3' class='text-end'><strong>Total Due:</strong></td>
                                        <td class='text-end'><strong>$9,350.00</strong></td>
                                    </tr>
                                </tfoot>
                            </table>
                        </div>

                        <div class='alert alert-info mt-4'>
                            <i class='fas fa-info-circle'></i> Payment is due within 30 days. Thank you for your business!
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</body>
</html>";

var invoicePdf = renderer.RenderHtmlAsPdf(bootstrapInvoice);
invoicePdf.SaveAs("bootstrap-invoice.pdf");

using IronPdf;

var renderer = new ChromePdfRenderer();

// Configure rendering for optimal Bootstrap output
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;
renderer.RenderingOptions.EnableJavaScript = true;
renderer.RenderingOptions.RenderDelay = 500; // Allow JS to fully load
renderer.RenderingOptions.ViewPortWidth = 1280; // Desktop viewport
renderer.RenderingOptions.MarginTop = 10;
renderer.RenderingOptions.MarginBottom = 10;
renderer.RenderingOptions.MarginLeft = 10;
renderer.RenderingOptions.MarginRight = 10;

string bootstrapSchedule = @"
<!DOCTYPE html>
<html>
<head>
    <link href='___PROTECTED_URL_135___ rel='stylesheet'>
    <style>
        @media print {
            .pagebreak { page-break-after: always; }
        }
    </style>
</head>
<body>
    <div class='container my-5'>
        <h1 class='text-center mb-5'>Tech Conference 2025 - Schedule</h1>

        <div class='row g-4'>
            <div class='col-md-6'>
                <div class='card border-primary'>
                    <div class='card-header bg-primary text-white d-flex justify-content-between align-items-center'>
                        <h5 class='mb-0'>Keynote Session</h5>
                        <span class='badge bg-light text-primary'>9:00 AM</span>
                    </div>
                    <div class='card-body'>
                        <h6 class='card-subtitle mb-2 text-muted'>Main Auditorium</h6>
                        <p class='card-text'><strong>The Future of AI in Software Development</strong></p>
                        <p class='card-text'>Join us for an exploration of how artificial intelligence is transforming the software development environment.</p>
                        <div class='d-flex align-items-center'>
                            <img src='___PROTECTED_URL_136___ class='rounded-circle me-2' alt='Speaker'>
                            <div>
                                <div class='fw-bold'>Dr. Sarah Chen</div>
                                <small class='text-muted'>AI Research Lead</small>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <div class='col-md-6'>
                <div class='card border-success'>
                    <div class='card-header bg-success text-white d-flex justify-content-between align-items-center'>
                        <h5 class='mb-0'>Workshop</h5>
                        <span class='badge bg-light text-success'>10:30 AM</span>
                    </div>
                    <div class='card-body'>
                        <h6 class='card-subtitle mb-2 text-muted'>Workshop Room A</h6>
                        <p class='card-text'><strong>Hands-On: Cloud-Native Architecture</strong></p>
                        <p class='card-text'>Learn practical techniques for building flexible, cloud-native applications with modern frameworks.</p>
                        <div class='d-flex align-items-center'>
                            <img src='___PROTECTED_URL_137___ class='rounded-circle me-2' alt='Speaker'>
                            <div>
                                <div class='fw-bold'>Michael Rodriguez</div>
                                <small class='text-muted'>Cloud Architect</small>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <div class='col-md-6'>
                <div class='card border-warning'>
                    <div class='card-header bg-warning text-dark d-flex justify-content-between align-items-center'>
                        <h5 class='mb-0'>Panel Discussion</h5>
                        <span class='badge bg-dark'>2:00 PM</span>
                    </div>
                    <div class='card-body'>
                        <h6 class='card-subtitle mb-2 text-muted'>Main Auditorium</h6>
                        <p class='card-text'><strong>Security in Modern Web Applications</strong></p>
                        <p class='card-text'>Industry experts discuss current security challenges and best practices for protecting user data.</p>
                        <small class='text-muted'>Featuring 4 industry experts</small>
                    </div>
                </div>
            </div>

            <div class='col-md-6'>
                <div class='card border-info'>
                    <div class='card-header bg-info text-white d-flex justify-content-between align-items-center'>
                        <h5 class='mb-0'>Technical Talk</h5>
                        <span class='badge bg-light text-info'>3:30 PM</span>
                    </div>
                    <div class='card-body'>
                        <h6 class='card-subtitle mb-2 text-muted'>Room B</h6>
                        <p class='card-text'><strong>Performance Optimization Strategies</strong></p>
                        <p class='card-text'>Deep dive into advanced techniques for improve application performance and reducing latency.</p>
                        <div class='d-flex align-items-center'>
                            <img src='___PROTECTED_URL_138___ class='rounded-circle me-2' alt='Speaker'>
                            <div>
                                <div class='fw-bold'>Alex Kim</div>
                                <small class='text-muted'>Performance Engineer</small>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class='pagebreak'></div>

        <h2 class='mt-5'>Additional Sessions</h2>
        <div class='table-responsive'>
            <table class='table table-striped'>
                <thead>
                    <tr>
                        <th>Time</th>
                        <th>Session</th>
                        <th>Speaker</th>
                        <th>Location</th>
                    </tr>
                </thead>
                <tbody>
                    <tr>
                        <td>11:45 AM</td>
                        <td>Lightning Talks</td>
                        <td>Various</td>
                        <td>Room C</td>
                    </tr>
                    <tr>
                        <td>1:00 PM</td>
                        <td>Networking Lunch</td>
                        <td>-</td>
                        <td>Cafeteria</td>
                    </tr>
                </tbody>
            </table>
        </div>
    </div>
</body>
</html>";

// Generate the PDF
var pdf = renderer.RenderHtmlAsPdf(bootstrapSchedule);

// Add metadata
pdf.MetaData.Author = "Tech Conference Team";
pdf.MetaData.Title = "Conference Schedule 2025";
pdf.MetaData.Subject = "Event Schedule";

// Save the PDF
pdf.SaveAs("conference-schedule.pdf");

// Example: Generate responsive invoice with Bootstrap
string bootstrapInvoice = @"
<!DOCTYPE html>
<html>
<head>
    <link href='___PROTECTED_URL_139___ rel='stylesheet'>
    <link href='___PROTECTED_URL_140___ rel='stylesheet'>
</head>
<body>
    <div class='container mt-5'>
        <div class='row'>
            <div class='col-12'>
                <div class='card'>
                    <div class='card-body'>
                        <div class='row mb-4'>
                            <div class='col-sm-6'>
                                <h2 class='text-primary'><i class='fas fa-file-invoice'></i> INVOICE</h2>
                                <p class='mb-1'><strong>Invoice #:</strong> INV-2025-001</p>
                                <p class='mb-1'><strong>Date:</strong> " + DateTime.Now.ToString("MMMM dd, yyyy") + @"</p>
                            </div>
                            <div class='col-sm-6 text-sm-end'>
                                <h4>Your Company Name</h4>
                                <p class='mb-1'>123 Business St</p>
                                <p class='mb-1'>City, State 12345</p>
                                <p>contact@company.com</p>
                            </div>
                        </div>

                        <hr>

                        <div class='row mb-4'>
                            <div class='col-sm-6'>
                                <h5>Bill To:</h5>
                                <p class='mb-1'><strong>Client Company</strong></p>
                                <p class='mb-1'>456 Client Ave</p>
                                <p>City, State 67890</p>
                            </div>
                        </div>

                        <div class='table-responsive'>
                            <table class='table table-bordered'>
                                <thead class='table-primary'>
                                    <tr>
                                        <th>Description</th>
                                        <th class='text-center'>Quantity</th>
                                        <th class='text-end'>Price</th>
                                        <th class='text-end'>Total</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    <tr>
                                        <td>Web Development Services</td>
                                        <td class='text-center'>40</td>
                                        <td class='text-end'>$150.00</td>
                                        <td class='text-end'>$6,000.00</td>
                                    </tr>
                                    <tr>
                                        <td>UI/UX Design</td>
                                        <td class='text-center'>20</td>
                                        <td class='text-end'>$125.00</td>
                                        <td class='text-end'>$2,500.00</td>
                                    </tr>
                                </tbody>
                                <tfoot>
                                    <tr>
                                        <td colspan='3' class='text-end'><strong>Subtotal:</strong></td>
                                        <td class='text-end'><strong>$8,500.00</strong></td>
                                    </tr>
                                    <tr>
                                        <td colspan='3' class='text-end'>Tax (10%):</td>
                                        <td class='text-end'>$850.00</td>
                                    </tr>
                                    <tr class='table-primary'>
                                        <td colspan='3' class='text-end'><strong>Total Due:</strong></td>
                                        <td class='text-end'><strong>$9,350.00</strong></td>
                                    </tr>
                                </tfoot>
                            </table>
                        </div>

                        <div class='alert alert-info mt-4'>
                            <i class='fas fa-info-circle'></i> Payment is due within 30 days. Thank you for your business!
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</body>
</html>";

var invoicePdf = renderer.RenderHtmlAsPdf(bootstrapInvoice);
invoicePdf.SaveAs("bootstrap-invoice.pdf");

輸出：一個專業的會議日程表，採用 Bootstrap 的卡片網格、flexbox 對齊方式、徽章組件和響應式佈局——所有內容都準確地渲染在 PDF 中。

XFINIUM.PDF：HTML 和框架支援有限

XFINIUM.PDF 專注於 PDF 的產生和處理，而不是 HTML 到 PDF 的轉換。 該函式庫對 Bootstrap 和現代 CSS 框架有顯著限制：

-不支援原生 HTML 渲染： XFINIUM.PDF 不包含內建的 HTML 到 PDF 轉換引擎。 -僅支援基本 HTML：僅限於簡單的 HTML 結構，不支援進階 CSS -不支援 Bootstrap：不支援具有 flexbox 和 CSS Grid 的現代 Bootstrap 框架（4/5 版本）。 -需要採取變通方法：開發人員必須使用底層 PDF API 手動重新建立佈局。 -需要外部工具：可能需要與外部 HTML 渲染引擎集成

開發影響：使用 Bootstrap 或現代 CSS 框架的應用程式無法使用 XFINIUM.PDF 直接將其 UI 轉換為 PDF。 開發者必須：

1. 使用 XFINIUM.PDF 的底層繪圖 API 重新建立佈局（需要大量開發時間）
2. 整合外部 HTML 渲染工具（增加複雜性和依賴關係）
3. 維護與 Web UI 並行的獨立 PDF 佈局程式碼（維護開銷）

對於需要使用現代框架將 HTML 轉換為 PDF 的項目，XFINIUM.PDF 的限制需要進行大量的額外開發。

如需了解 Bootstrap 和現代 CSS 框架的完整支持，請參閱 Bootstrap 和 Flexbox CSS 指南。

XFINIUM.PDF 定價與許可

每個軟體包都有兩個版本：生成器版本用於 PDF 生成/編輯，檢視器版本包含所有生成器功能以及 PDF 渲染和檢視功能。

每個開發者都需要許可證。

• 可免版稅分發至無限數量的桌上型/伺服器。
• 協助訂閱包含一年的更新/支援服務。

價格範圍為每年 290.00 美元至 872.00 美元。

IronPDF定價和許可

IronPDF 可供開發使用，並可隨時授權用於商業用途。授權選項包括單一項目授權、單一開發者授權、代理商授權、跨國組織授權以及 SaaS/OEM 再分發授權。 所有許可證均包含 30 天退款保證、一年支援/升級、開發/測試/生產有效期以及永久許可證（一次性購買）。 Lite 套餐起價為$799 ，無任何經常性費用。