Aspose PDF 轉換教學與比較

using IronPdf;

// Disable local disk access or cross-origin requests
Installation.EnableWebSecurity = true;

// Instantiate Renderer
var renderer = new ChromePdfRenderer();

// Create a PDF from an HTML string using C#
var pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>");
pdf.SaveAs("output.pdf");

// Advanced Example with HTML Assets
// Load external html assets: images, CSS and JavaScript.
var myAdvancedPdf = renderer.RenderHtmlAsPdf("<img src='icons/iron.png'>", @"C:\site\assets\");
myAdvancedPdf.SaveAs("html-with-assets.pdf");

Imports IronPdf

' Disable local disk access or cross-origin requests
Installation.EnableWebSecurity = True

' Instantiate Renderer
Dim renderer = New ChromePdfRenderer()

' Create a PDF from an HTML string using C#
Dim pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>")
pdf.SaveAs("output.pdf")

' Advanced Example with HTML Assets
' Load external html assets: images, CSS and JavaScript.
Dim myAdvancedPdf = renderer.RenderHtmlAsPdf("<img src='icons/iron.png'>", "C:\site\assets\")
myAdvancedPdf.SaveAs("html-with-assets.pdf")

using Aspose.Pdf;
using Aspose.Pdf.Text;

Document doc = new Document();
Page page = doc.Pages.Add();
HtmlFragment text = new HtmlFragment("<h1>Hello World</h1>");
page.Paragraphs.Add(text);
doc.Save("output.pdf");

Imports Aspose.Pdf
Imports Aspose.Pdf.Text

Private doc As New Document()
Private page As Page = doc.Pages.Add()
Private text As New HtmlFragment("<h1>Hello World</h1>")
page.Paragraphs.Add(text)
doc.Save("output.pdf")

using IronPdf;
using System;

// Open an Encrypted File, alternatively create a new PDF from Html
var pdf = PdfDocument.FromFile("encrypted.pdf", "password");

// Edit file metadata
pdf.MetaData.Author = "Satoshi Nakamoto";
pdf.MetaData.Keywords = "SEO, Friendly";
pdf.MetaData.ModifiedDate = DateTime.Now;

// Edit file security settings
// The following code makes a PDF read only and will disallow copy & paste and printing
pdf.SecuritySettings.RemovePasswordsAndEncryption();
pdf.SecuritySettings.MakePdfDocumentReadOnly("secret-key");
pdf.SecuritySettings.AllowUserAnnotations = false;
pdf.SecuritySettings.AllowUserCopyPasteContent = false;
pdf.SecuritySettings.AllowUserFormData = false;
pdf.SecuritySettings.AllowUserPrinting = IronPdf.Security.PdfPrintSecurity.FullPrintRights;

// change or set the document encryption password
pdf.Password = "my-password";
pdf.SaveAs("secured.pdf");

Imports IronPdf
Imports System

' Open an Encrypted File, alternatively create a new PDF from Html
Private pdf = PdfDocument.FromFile("encrypted.pdf", "password")

' Edit file metadata
pdf.MetaData.Author = "Satoshi Nakamoto"
pdf.MetaData.Keywords = "SEO, Friendly"
pdf.MetaData.ModifiedDate = DateTime.Now

' Edit file security settings
' The following code makes a PDF read only and will disallow copy & paste and printing
pdf.SecuritySettings.RemovePasswordsAndEncryption()
pdf.SecuritySettings.MakePdfDocumentReadOnly("secret-key")
pdf.SecuritySettings.AllowUserAnnotations = False
pdf.SecuritySettings.AllowUserCopyPasteContent = False
pdf.SecuritySettings.AllowUserFormData = False
pdf.SecuritySettings.AllowUserPrinting = IronPdf.Security.PdfPrintSecurity.FullPrintRights

' change or set the document encryption password
pdf.Password = "my-password"
pdf.SaveAs("secured.pdf")

using Aspose.Pdf;

Document pdfDocument = new Document("document.pdf");
pdfDocument.Encrypt("password", null, Permissions.PrintDocument, CryptoAlgorithm.AESx128);
pdfDocument.Save("encrypted.pdf");

Imports Aspose.Pdf

Private pdfDocument As New Document("document.pdf")
pdfDocument.Encrypt("password", Nothing, Permissions.PrintDocument, CryptoAlgorithm.AESx128)
pdfDocument.Save("encrypted.pdf")

using IronPdf;

//Load the document you want to use
PdfDocument pdf = PdfDocument.FromFile("novel.pdf");

// Redact the 'are' phrase from all pages
pdf.RedactTextOnAllPages("are");

//Save the redacted version of the document
pdf.SaveAs("redacted.pdf");

Imports IronPdf

'Load the document you want to use
Private pdf As PdfDocument = PdfDocument.FromFile("novel.pdf")

' Redact the 'are' phrase from all pages
pdf.RedactTextOnAllPages("are")

'Save the redacted version of the document
pdf.SaveAs("redacted.pdf")

using Aspose.Pdf;
using Aspose.Pdf.Redaction;

Document document = new Document("novel.pdf");
TextFragmentAbsorber textFragmentAbsorber = new TextFragmentAbsorber("confidential");
document.Pages.Accept(textFragmentAbsorber);
foreach (TextFragment textFragment in textFragmentAbsorber.TextFragments)
{
    textFragment.Text = "XXXXX";
}
document.Save("redacted.pdf");

Imports Aspose.Pdf
Imports Aspose.Pdf.Redaction

Private document As New Document("novel.pdf")
Private textFragmentAbsorber As New TextFragmentAbsorber("confidential")
document.Pages.Accept(textFragmentAbsorber)
For Each textFragment As TextFragment In textFragmentAbsorber.TextFragments
	textFragment.Text = "XXXXX"
Next textFragment
document.Save("redacted.pdf")

using IronPdf;
using IronPdf.Signing;
using System.Security.Cryptography.X509Certificates;

// Create X509Certificate2 object with X509KeyStorageFlags set to Exportable
X509Certificate2 cert = new X509Certificate2("IronSoftware.pfx", "123456", X509KeyStorageFlags.Exportable);

// Create PdfSignature object
var sig = new PdfSignature(cert);

// Sign PDF document
PdfDocument pdf = PdfDocument.FromFile("document.pdf");
pdf.Sign(sig);
pdf.SaveAs("signed.pdf");

Imports IronPdf
Imports IronPdf.Signing
Imports System.Security.Cryptography.X509Certificates

' Create X509Certificate2 object with X509KeyStorageFlags set to Exportable
Private cert As New X509Certificate2("IronSoftware.pfx", "123456", X509KeyStorageFlags.Exportable)

' Create PdfSignature object
Private sig = New PdfSignature(cert)

' Sign PDF document
Private pdf As PdfDocument = PdfDocument.FromFile("document.pdf")
pdf.Sign(sig)
pdf.SaveAs("signed.pdf")

using Aspose.Pdf;
using Aspose.Pdf.Forms;
using Aspose.Pdf.Facades;

Document document = new Document("input.pdf");
PKCS7 pkcs = new PKCS7("signature.pfx", "password");
Document.SignatureField signatureField = new SignatureField(document.Pages[1], new Rectangle(100, 100, 200, 200));
document.Form.Add(signatureField);
document.Save("signed.pdf");

Imports Aspose.Pdf
Imports Aspose.Pdf.Forms
Imports Aspose.Pdf.Facades

Private document As New Document("input.pdf")
Private pkcs As New PKCS7("signature.pfx", "password")
Private signatureField As Document.SignatureField = New SignatureField(document.Pages(1), New Rectangle(100, 100, 200, 200))
document.Form.Add(signatureField)
document.Save("signed.pdf")

using IronPdf;

// Stamps a Watermark onto a new or existing PDF
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderUrlAsPdf("https://www.nuget.org/packages/IronPdf/");
pdf.ApplyWatermark("<h2 style='color:red'>SAMPLE</h2>", 30, IronPdf.Editing.VerticalAlignment.Middle, IronPdf.Editing.HorizontalAlignment.Center);
pdf.SaveAs(@"C:\Path\To\Watermarked.pdf");

Imports IronPdf

' Stamps a Watermark onto a new or existing PDF
Private renderer = New ChromePdfRenderer()
Private pdf = renderer.RenderUrlAsPdf("https://www.nuget.org/packages/IronPdf/")
pdf.ApplyWatermark("<h2 style='color:red'>SAMPLE</h2>", 30, IronPdf.Editing.VerticalAlignment.Middle, IronPdf.Editing.HorizontalAlignment.Center)
pdf.SaveAs("C:\Path\To\Watermarked.pdf")

using Aspose.Pdf;
using Aspose.Pdf.Text;

Document document = new Document("input.pdf");
TextStamp textStamp = new TextStamp("Confidential");
textStamp.Background = true;
textStamp.Opacity = 0.5;
document.Pages[1].AddStamp(textStamp);
document.Save("watermarked.pdf");

Imports Aspose.Pdf
Imports Aspose.Pdf.Text

Private document As New Document("input.pdf")
Private textStamp As New TextStamp("Confidential")
textStamp.Background = True
textStamp.Opacity = 0.5
document.Pages(1).AddStamp(textStamp)
document.Save("watermarked.pdf")

using IronPdf;
using IronPdf.Editing;

ChromePdfRenderer renderer = new ChromePdfRenderer();
PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>");

// Create text stamper
TextStamper textStamper = new TextStamper()
{
    Text = "Text Stamper!",
    FontFamily = "Bungee Spice",
    UseGoogleFont = true,
    FontSize = 30,
    IsBold = true,
    IsItalic = true,
    VerticalAlignment = VerticalAlignment.Top
};

// Stamp the text stamper
pdf.ApplyStamp(textStamper);
pdf.SaveAs("stampText.pdf");

Imports IronPdf
Imports IronPdf.Editing

Private renderer As New ChromePdfRenderer()
Private pdf As PdfDocument = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>")

' Create text stamper
Private textStamper As New TextStamper() With {
	.Text = "Text Stamper!",
	.FontFamily = "Bungee Spice",
	.UseGoogleFont = True,
	.FontSize = 30,
	.IsBold = True,
	.IsItalic = True,
	.VerticalAlignment = VerticalAlignment.Top
}

' Stamp the text stamper
pdf.ApplyStamp(textStamper)
pdf.SaveAs("stampText.pdf")

using IronPdf;
using IronPdf.Editing;
using System;

ChromePdfRenderer renderer = new ChromePdfRenderer();
PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>");

// Create image stamper
ImageStamper imageStamper = new ImageStamper(new Uri("https://ironpdf.com/img/svgs/iron-pdf-logo.svg"))
{
    VerticalAlignment = VerticalAlignment.Top,
};

// Stamp the image stamper
pdf.ApplyStamp(imageStamper, 0);
pdf.SaveAs("stampImage.pdf");

Imports IronPdf
Imports IronPdf.Editing
Imports System

Private renderer As New ChromePdfRenderer()
Private pdf As PdfDocument = renderer.RenderHtmlAsPdf("<h1>Example HTML Document!</h1>")

' Create image stamper
Private imageStamper As New ImageStamper(New Uri("https://ironpdf.com/img/svgs/iron-pdf-logo.svg")) With {.VerticalAlignment = VerticalAlignment.Top}

' Stamp the image stamper
pdf.ApplyStamp(imageStamper, 0)
pdf.SaveAs("stampImage.pdf")

using Aspose.Pdf;
using Aspose.Pdf.Text;

Document document = new Document("input.pdf");
ImageStamp imageStamp = new ImageStamp("logo.png");
imageStamp.Background = true; // Enable background for the stamp
document.Pages[1].AddStamp(imageStamp);
document.Save("stamped.pdf");

Imports Aspose.Pdf
Imports Aspose.Pdf.Text

Private document As New Document("input.pdf")
Private imageStamp As New ImageStamp("logo.png")
imageStamp.Background = True ' Enable background for the stamp
document.Pages(1).AddStamp(imageStamp)
document.Save("stamped.pdf")

using IronPdf;

// Instantiate Renderer
DocxToPdfRenderer renderer = new DocxToPdfRenderer();
// Render from DOCX file
PdfDocument pdf = renderer.RenderDocxAsPdf("Modern-chronological-resume.docx");
// Save the PDF
pdf.SaveAs("pdfFromDocx.pdf");

Imports IronPdf

' Instantiate Renderer
Private renderer As New DocxToPdfRenderer()
' Render from DOCX file
Private pdf As PdfDocument = renderer.RenderDocxAsPdf("Modern-chronological-resume.docx")
' Save the PDF
pdf.SaveAs("pdfFromDocx.pdf")

using Aspose.Words;
using Aspose.Words.Saving;

Document doc = new Document("input.docx");
doc.Save("output.pdf", SaveFormat.Pdf);

Imports Aspose.Words
Imports Aspose.Words.Saving

Private doc As New Document("input.docx")
doc.Save("output.pdf", SaveFormat.Pdf)