
如何用 C# 設置 PDF 的自訂紙張大小 | IronPDF
從Scryber.Core遷移到IronPDF將您的PDF生成工作從自定義XHTML+CSS佈局引擎轉移到支持全CSS3和JavaScript的基於Chromium的渲染器。 本指南提供了一個逐步的遷移路徑,涵蓋了LGPL v3授權條款的考量、Scryber的XHTML嚴格模板模型,以及兩個引擎之間的渲染差異。
為什麼要從Scryber.Core遷移到IronPDF
理解Scryber.Core
Scryber.Core(由Richard Hewitson維護,目前版本為9.3.1)是一個開源程式庫,使用其自身的佈局引擎解析XHTML+CSS模板——不是一個瀏覽器。 它支持CSS樣式、通過doc.Params,以及SVG,這使得它對希望使用HTML驅動PDF且不依賴於瀏覽器的開發者具有吸引力。
儘管Scryber.Core是一個基於HTML模板的PDF生成的可行選擇,然而一些限制驅使團隊進行遷移。
遷移的主要原因
- LGPL v3授權問題: 如果您修改Scryber自身,則需要披露源程式碼; 在閉源應用中允許靜態連結,但條款仍然限制您如何發佈修改。
- XHTML嚴格輸入: 模板必須是有效的XML——大多數現實世界的HTML在Scryber解析之前需要清理。
- 非瀏覽器渲染器: 自定義XHTML/CSS佈局引擎——現代CSS(網格,完整的Flexbox,容器查詢)和任何JavaScript都不會執行。
- 社區較小: 工作範例少於主流程式庫。
- 無JavaScript執行: 僅靜態渲染——圖表、SPAs和動態小部件必須預渲染。
- 沒有原生URL到PDF: 您必須自己抓取HTML(例如,使用
HttpClient),並將其轉入。 - 社區支持: 商業支持選項有限。
Scryber.Core與IronPDF的比較
| 方面 | Scryber.Core | IronPDF |
|---|---|---|
| 授權 | LGPL v3 | 商業 |
| 渲染引擎 | 自定義XHTML/CSS佈局引擎 | Chromium |
| CSS支持 | 子集(無網格,部分Flexbox) | 完整支持 CSS3 |
| JavaScript | 不執行 | 完整(Chromium V8) |
| 模板綁定 | Handlebars風格{{ }} + <template> | 標準(Razor,RazorLight等) |
| 輸入嚴格性 | 需要格式正確的XHTML | 接受真實世界的HTML |
| 異步支援 | PDFAsync MVC幫助器; sync core | 完整的異步API |
| 文件 | 閱讀文件網站+樣本 | 廣泛的 |
| 社群支持 | 小 | 更大 |
| 商業支持 | 社區支持 | 提供商業支援 |
IronPDF提供商業支持、文件和比Scryber.Core更大的使用者基礎。 該程式庫授權供商業使用,無需履行LGPL義務。
開始之前
前提條件
- .NET環境:.NET Framework 4.6.2+ 或.NET Core 3.1+ / .NET 5/6/7/8/9+
- NuGet存取: 有能力安裝NuGet套件
- IronPDF授權: 從ironpdf.com獲取您的授權金鑰
NuGet包變更
# Remove Scryber.Core
dotnet remove package Scryber.Core
# Install IronPDF
dotnet add package IronPdf
授權配置
// Add at application startup
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";' Add at application startup
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"' Add at application startup
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"完整API參考
名稱空間變更
// Before: Scryber.Core
using Scryber.Components; // Document, Page, etc.
using Scryber.Drawing; // Units, colours
using Scryber.PDF; // RenderOptions / OutputCompressionType
using Scryber.Styles; // Style elements (older XML template usage)
// After: IronPDF
using IronPdf;
using IronPdf.Rendering;// Before: Scryber.Core
using Scryber.Components; // Document, Page, etc.
using Scryber.Drawing; // Units, colours
using Scryber.PDF; // RenderOptions / OutputCompressionType
using Scryber.Styles; // Style elements (older XML template usage)
// After: IronPDF
using IronPdf;
using IronPdf.Rendering;Imports Scryber.Components ' Document, Page, etc.
Imports Scryber.Drawing ' Units, colours
Imports Scryber.PDF ' RenderOptions / OutputCompressionType
Imports Scryber.Styles ' Style elements (older XML template usage)
' After: IronPDF
Imports IronPdf
Imports IronPdf.RenderingImports Scryber.Components ' Document, Page, etc.
Imports Scryber.Drawing ' Units, colours
Imports Scryber.PDF ' RenderOptions / OutputCompressionType
Imports Scryber.Styles ' Style elements (older XML template usage)
' After: IronPDF
Imports IronPdf
Imports IronPdf.Rendering核心API對應
| Scryber.Core | IronPDF |
|---|---|
Document.ParseDocument(reader, "", ParseSourceType.DynamicContent) | renderer.RenderHtmlAsPdf(html) |
Document.ParseDocument(path) | renderer.RenderHtmlFileAsPdf(path) |
doc.SaveAsPDF(path) | pdf.SaveAs(path) |
doc.SaveAsPDF(stream) | pdf.BinaryData (byte[]) |
doc.Info.Title | pdf.MetaData.Title |
doc.Info.Author | pdf.MetaData.Author |
@page CSS在模板中 | renderer.RenderingOptions.PaperSize / 邊距 |
doc.RenderOptions | renderer.RenderingOptions |
Handlebars {{value}} + doc.Params | Razor / 字串插值 |
程式碼遷移範例
範例1:基本HTML到PDF轉換
之前(Scryber.Core):
// NuGet: Install-Package Scryber.Core
using Scryber.Components;
using System.IO;
class Program
{
static void Main()
{
// Scryber requires well-formed XHTML wrapped in an html root with the xhtml namespace
string html = @"<html xmlns='http://www.w3.org/1999/xhtml'>
<body><h1>Hello World</h1><p>This is a PDF document.</p></body>
</html>";
using (var reader = new StringReader(html))
using (var doc = Document.ParseDocument(reader, string.Empty, ParseSourceType.DynamicContent))
using (var stream = new FileStream("output.pdf", FileMode.Create))
{
doc.SaveAsPDF(stream);
}
}
}// NuGet: Install-Package Scryber.Core
using Scryber.Components;
using System.IO;
class Program
{
static void Main()
{
// Scryber requires well-formed XHTML wrapped in an html root with the xhtml namespace
string html = @"<html xmlns='http://www.w3.org/1999/xhtml'>
<body><h1>Hello World</h1><p>This is a PDF document.</p></body>
</html>";
using (var reader = new StringReader(html))
using (var doc = Document.ParseDocument(reader, string.Empty, ParseSourceType.DynamicContent))
using (var stream = new FileStream("output.pdf", FileMode.Create))
{
doc.SaveAsPDF(stream);
}
}
}Imports Scryber.Components
Imports System.IO
Class Program
Shared Sub Main()
' Scryber requires well-formed XHTML wrapped in an html root with the xhtml namespace
Dim html As String = "<html xmlns='http://www.w3.org/1999/xhtml'>" &
"<body><h1>Hello World</h1><p>This is a PDF document.</p></body>" &
"</html>"
Using reader As New StringReader(html),
doc As Document = Document.ParseDocument(reader, String.Empty, ParseSourceType.DynamicContent),
stream As New FileStream("output.pdf", FileMode.Create)
doc.SaveAsPDF(stream)
End Using
End Sub
End ClassImports Scryber.Components
Imports System.IO
Class Program
Shared Sub Main()
' Scryber requires well-formed XHTML wrapped in an html root with the xhtml namespace
Dim html As String = "<html xmlns='http://www.w3.org/1999/xhtml'>" &
"<body><h1>Hello World</h1><p>This is a PDF document.</p></body>" &
"</html>"
Using reader As New StringReader(html),
doc As Document = Document.ParseDocument(reader, String.Empty, ParseSourceType.DynamicContent),
stream As New FileStream("output.pdf", FileMode.Create)
doc.SaveAsPDF(stream)
End Using
End Sub
End Class之後(IronPDF):
// NuGet: Install-Package IronPdf
using IronPdf;
class Program
{
static void Main()
{
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";
var renderer = new ChromePdfRenderer();
string html = "<html><body><h1>Hello World</h1><p>This is a PDF document.</p></body></html>";
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("output.pdf");
}
}// NuGet: Install-Package IronPdf
using IronPdf;
class Program
{
static void Main()
{
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";
var renderer = new ChromePdfRenderer();
string html = "<html><body><h1>Hello World</h1><p>This is a PDF document.</p></body></html>";
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("output.pdf");
}
}Imports IronPdf
Class Program
Shared Sub Main()
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"
Dim renderer = New ChromePdfRenderer()
Dim html As String = "<html><body><h1>Hello World</h1><p>This is a PDF document.</p></body></html>"
Dim pdf = renderer.RenderHtmlAsPdf(html)
pdf.SaveAs("output.pdf")
End Sub
End ClassImports IronPdf
Class Program
Shared Sub Main()
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"
Dim renderer = New ChromePdfRenderer()
Dim html As String = "<html><body><h1>Hello World</h1><p>This is a PDF document.</p></body></html>"
Dim pdf = renderer.RenderHtmlAsPdf(html)
pdf.SaveAs("output.pdf")
End Sub
End ClassScryber.Core將XHTML字串包裹在SaveAsPDF將PDF寫入ChromePdfRenderer。 XHTML命名空間聲明是必需的——Scryber將拒絕不是格式正確的XML的HTML。
IronPDF使用SaveAs()保存。 接受真實世界的HTML5。 參見HTML到PDF文件獲取更多範例。
範例2:URL轉PDF轉換
之前(Scryber.Core):
// NuGet: Install-Package Scryber.Core
// Scryber has no native URL-to-PDF method — fetch the HTML yourself, then parse.
using Scryber.Components;
using System.IO;
using System.Net.Http;
using System.Threading.Tasks;
class Program
{
static async Task Main()
{
using var client = new HttpClient();
string html = await client.GetStringAsync("https://www.example.com");
// Most live HTML is not valid XHTML; expect to clean it
// (e.g., HtmlAgilityPack) before Scryber will parse it.
using (var reader = new StringReader(html))
using (var doc = Document.ParseDocument(reader, string.Empty, ParseSourceType.DynamicContent))
using (var stream = new FileStream("webpage.pdf", FileMode.Create))
{
doc.SaveAsPDF(stream);
}
}
}// NuGet: Install-Package Scryber.Core
// Scryber has no native URL-to-PDF method — fetch the HTML yourself, then parse.
using Scryber.Components;
using System.IO;
using System.Net.Http;
using System.Threading.Tasks;
class Program
{
static async Task Main()
{
using var client = new HttpClient();
string html = await client.GetStringAsync("https://www.example.com");
// Most live HTML is not valid XHTML; expect to clean it
// (e.g., HtmlAgilityPack) before Scryber will parse it.
using (var reader = new StringReader(html))
using (var doc = Document.ParseDocument(reader, string.Empty, ParseSourceType.DynamicContent))
using (var stream = new FileStream("webpage.pdf", FileMode.Create))
{
doc.SaveAsPDF(stream);
}
}
}Imports Scryber.Components
Imports System.IO
Imports System.Net.Http
Imports System.Threading.Tasks
Module Program
Async Function Main() As Task
Using client As New HttpClient()
Dim html As String = Await client.GetStringAsync("https://www.example.com")
' Most live HTML is not valid XHTML; expect to clean it
' (e.g., HtmlAgilityPack) before Scryber will parse it.
Using reader As New StringReader(html)
Using doc As Document = Document.ParseDocument(reader, String.Empty, ParseSourceType.DynamicContent)
Using stream As New FileStream("webpage.pdf", FileMode.Create)
doc.SaveAsPDF(stream)
End Using
End Using
End Using
End Using
End Function
End ModuleImports Scryber.Components
Imports System.IO
Imports System.Net.Http
Imports System.Threading.Tasks
Module Program
Async Function Main() As Task
Using client As New HttpClient()
Dim html As String = Await client.GetStringAsync("https://www.example.com")
' Most live HTML is not valid XHTML; expect to clean it
' (e.g., HtmlAgilityPack) before Scryber will parse it.
Using reader As New StringReader(html)
Using doc As Document = Document.ParseDocument(reader, String.Empty, ParseSourceType.DynamicContent)
Using stream As New FileStream("webpage.pdf", FileMode.Create)
doc.SaveAsPDF(stream)
End Using
End Using
End Using
End Using
End Function
End Module之後(IronPDF):
// NuGet: Install-Package IronPdf
using IronPdf;
class Program
{
static void Main()
{
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderUrlAsPdf("https://www.example.com");
pdf.SaveAs("webpage.pdf");
}
}// NuGet: Install-Package IronPdf
using IronPdf;
class Program
{
static void Main()
{
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderUrlAsPdf("https://www.example.com");
pdf.SaveAs("webpage.pdf");
}
}Imports IronPdf
Class Program
Shared Sub Main()
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"
Dim renderer As New ChromePdfRenderer()
Dim pdf = renderer.RenderUrlAsPdf("https://www.example.com")
pdf.SaveAs("webpage.pdf")
End Sub
End ClassImports IronPdf
Class Program
Shared Sub Main()
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"
Dim renderer As New ChromePdfRenderer()
Dim pdf = renderer.RenderUrlAsPdf("https://www.example.com")
pdf.SaveAs("webpage.pdf")
End Sub
End ClassScryber.Core沒有原生的URL到PDF入口點。 您使用Document.ParseDocument()。 因為Scryber需要格式正確的XHTML,所以大多數現場頁面將需要清理(例如通過HtmlAgilityPack)才能解析。 JavaScript不會執行,因此任何動態渲染的內容將丟失。
IronPDF的RenderUrlAsPdf()通過其Chromium引擎在單次調用中處理抓取、JavaScript執行和CSS渲染。更多資訊請參見我們的教程。
範例3:自定義頁面設置和邊距
之前(Scryber.Core):
// NuGet: Install-Package Scryber.Core
// Page size and margins are normally declared in the XHTML/CSS template;
// the runtime RenderOptions object exposes output-side settings such as compression.
using Scryber.Components;
using Scryber.PDF;
using System.IO;
class Program
{
static void Main()
{
// Page size and margins go in CSS @page; this is the Scryber idiom.
string html = @"<html xmlns='http://www.w3.org/1999/xhtml'>
<head>
<style>
@page { size: A4 portrait; margin: 40pt; }
</style>
</head>
<body><h1>Custom PDF</h1><p>With custom margins and settings.</p></body>
</html>";
using (var reader = new StringReader(html))
using (var doc = Document.ParseDocument(reader, string.Empty, ParseSourceType.DynamicContent))
using (var stream = new FileStream("custom.pdf", FileMode.Create))
{
// Output-side options (compression / conformance) are on RenderOptions.
doc.RenderOptions.Compression = OutputCompressionType.FlateDecode;
doc.SaveAsPDF(stream);
}
}
}// NuGet: Install-Package Scryber.Core
// Page size and margins are normally declared in the XHTML/CSS template;
// the runtime RenderOptions object exposes output-side settings such as compression.
using Scryber.Components;
using Scryber.PDF;
using System.IO;
class Program
{
static void Main()
{
// Page size and margins go in CSS @page; this is the Scryber idiom.
string html = @"<html xmlns='http://www.w3.org/1999/xhtml'>
<head>
<style>
@page { size: A4 portrait; margin: 40pt; }
</style>
</head>
<body><h1>Custom PDF</h1><p>With custom margins and settings.</p></body>
</html>";
using (var reader = new StringReader(html))
using (var doc = Document.ParseDocument(reader, string.Empty, ParseSourceType.DynamicContent))
using (var stream = new FileStream("custom.pdf", FileMode.Create))
{
// Output-side options (compression / conformance) are on RenderOptions.
doc.RenderOptions.Compression = OutputCompressionType.FlateDecode;
doc.SaveAsPDF(stream);
}
}
}Imports Scryber.Components
Imports Scryber.PDF
Imports System.IO
Module Program
Sub Main()
' Page size and margins go in CSS @page; this is the Scryber idiom.
Dim html As String = "<html xmlns='http://www.w3.org/1999/xhtml'>" &
"<head>" &
"<style>" &
"@page { size: A4 portrait; margin: 40pt; }" &
"</style>" &
"</head>" &
"<body><h1>Custom PDF</h1><p>With custom margins and settings.</p></body>" &
"</html>"
Using reader As New StringReader(html),
doc As Document = Document.ParseDocument(reader, String.Empty, ParseSourceType.DynamicContent),
stream As New FileStream("custom.pdf", FileMode.Create)
' Output-side options (compression / conformance) are on RenderOptions.
doc.RenderOptions.Compression = OutputCompressionType.FlateDecode
doc.SaveAsPDF(stream)
End Using
End Sub
End ModuleImports Scryber.Components
Imports Scryber.PDF
Imports System.IO
Module Program
Sub Main()
' Page size and margins go in CSS @page; this is the Scryber idiom.
Dim html As String = "<html xmlns='http://www.w3.org/1999/xhtml'>" &
"<head>" &
"<style>" &
"@page { size: A4 portrait; margin: 40pt; }" &
"</style>" &
"</head>" &
"<body><h1>Custom PDF</h1><p>With custom margins and settings.</p></body>" &
"</html>"
Using reader As New StringReader(html),
doc As Document = Document.ParseDocument(reader, String.Empty, ParseSourceType.DynamicContent),
stream As New FileStream("custom.pdf", FileMode.Create)
' Output-side options (compression / conformance) are on RenderOptions.
doc.RenderOptions.Compression = OutputCompressionType.FlateDecode
doc.SaveAsPDF(stream)
End Using
End Sub
End Module之後(IronPDF):
// NuGet: Install-Package IronPdf
using IronPdf;
using IronPdf.Rendering;
class Program
{
static void Main()
{
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";
var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
renderer.RenderingOptions.MarginTop = 40;
renderer.RenderingOptions.MarginBottom = 40;
string html = "<html><body><h1>Custom PDF</h1><p>With custom margins and settings.</p></body></html>";
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("custom.pdf");
}
}// NuGet: Install-Package IronPdf
using IronPdf;
using IronPdf.Rendering;
class Program
{
static void Main()
{
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";
var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
renderer.RenderingOptions.MarginTop = 40;
renderer.RenderingOptions.MarginBottom = 40;
string html = "<html><body><h1>Custom PDF</h1><p>With custom margins and settings.</p></body></html>";
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("custom.pdf");
}
}Imports IronPdf
Imports IronPdf.Rendering
Class Program
Shared Sub Main()
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"
Dim renderer As New ChromePdfRenderer()
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
renderer.RenderingOptions.MarginTop = 40
renderer.RenderingOptions.MarginBottom = 40
Dim html As String = "<html><body><h1>Custom PDF</h1><p>With custom margins and settings.</p></body></html>"
Dim pdf = renderer.RenderHtmlAsPdf(html)
pdf.SaveAs("custom.pdf")
End Sub
End ClassImports IronPdf
Imports IronPdf.Rendering
Class Program
Shared Sub Main()
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"
Dim renderer As New ChromePdfRenderer()
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
renderer.RenderingOptions.MarginTop = 40
renderer.RenderingOptions.MarginBottom = 40
Dim html As String = "<html><body><h1>Custom PDF</h1><p>With custom margins and settings.</p></body></html>"
Dim pdf = renderer.RenderHtmlAsPdf(html)
pdf.SaveAs("custom.pdf")
End Sub
End Class在Scryber.Core中,頁面大小和邊距通過@page CSS在模板中聲明,而OutputCompressionType.FlateDecode)。
IronPDF將頁面幾何移到渲染器上的MarginBottom以毫米計。 頁面幾何位於API表面而不是模板內部。
模板遷移模式
從Scryber綁定遷移到標準模板
Scryber.Core使用XHTML與Handebars風格的<template data-bind='...'>構造重複段。 要遷移,請在標準.NET模板中重新表達這些內容:
Scryber綁定(XHTML + Handlebars):
<p>{{model.Name}}</p>
<p>Total: {{model.Total}}</p>
<template data-bind='{{model.Items}}'>
<p>{{.Name}}: {{.Price}}</p>
</template>
IronPDF與C#字串插值:
var items = model.Items.Select(i => $"<li>{i.Name}: {i.Price:C}</li>");
var html = $@"
<p>{model.Name}</p>
<p>Total: {model.Total:C}</p>
<ul>
{string.Join("", items)}
</ul>";
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);var items = model.Items.Select(i => $"<li>{i.Name}: {i.Price:C}</li>");
var html = $@"
<p>{model.Name}</p>
<p>Total: {model.Total:C}</p>
<ul>
{string.Join("", items)}
</ul>";
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);Dim items = model.Items.Select(Function(i) $"<li>{i.Name}: {i.Price:C}</li>")
Dim html = $"
<p>{model.Name}</p>
<p>Total: {model.Total:C}</p>
<ul>
{String.Join("", items)}
</ul>"
Dim renderer = New ChromePdfRenderer()
Dim pdf = renderer.RenderHtmlAsPdf(html)Dim items = model.Items.Select(Function(i) $"<li>{i.Name}: {i.Price:C}</li>")
Dim html = $"
<p>{model.Name}</p>
<p>Total: {model.Total:C}</p>
<ul>
{String.Join("", items)}
</ul>"
Dim renderer = New ChromePdfRenderer()
Dim pdf = renderer.RenderHtmlAsPdf(html)因為IronPDF接受普通HTML,您可以使用任何.NET模板引擎——Razor,RazorLight,Handlebars.Net——而不是Scryber的{{ }} + <template>構造。
頁眉和頁腳遷移
Scryber.Core(XHTML + @page 邊距盒):
<html xmlns='http://www.w3.org/1999/xhtml'>
<head>
<style>
@page {
@top-center { content: 'Company Report'; }
@bottom-center { content: 'Page ' counter(page) ' of ' counter(pages); }
}
</style>
</head>
<body>
<h1>Content Here</h1>
</body>
</html>
IronPDF(HTML頁眉/頁腳):
using IronPdf;
var renderer = new ChromePdfRenderer();
// HTML header with full CSS support
renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter
{
HtmlFragment = @"
<div style='width: 100%; text-align: center; font-size: 12pt; border-bottom: 1px solid #ccc;'>
Company Report
</div>",
MaxHeight = 30
};
// HTML footer with page numbers
renderer.RenderingOptions.HtmlFooter = new HtmlHeaderFooter
{
HtmlFragment = @"
<div style='width: 100%; text-align: center; font-size: 10pt;'>
Page {page} of {total-pages}
</div>",
MaxHeight = 25
};
var pdf = renderer.RenderHtmlAsPdf("<h1>Content Here</h1>");
pdf.SaveAs("report.pdf");using IronPdf;
var renderer = new ChromePdfRenderer();
// HTML header with full CSS support
renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter
{
HtmlFragment = @"
<div style='width: 100%; text-align: center; font-size: 12pt; border-bottom: 1px solid #ccc;'>
Company Report
</div>",
MaxHeight = 30
};
// HTML footer with page numbers
renderer.RenderingOptions.HtmlFooter = new HtmlHeaderFooter
{
HtmlFragment = @"
<div style='width: 100%; text-align: center; font-size: 10pt;'>
Page {page} of {total-pages}
</div>",
MaxHeight = 25
};
var pdf = renderer.RenderHtmlAsPdf("<h1>Content Here</h1>");
pdf.SaveAs("report.pdf");Imports IronPdf
Dim renderer As New ChromePdfRenderer()
' HTML header with full CSS support
renderer.RenderingOptions.HtmlHeader = New HtmlHeaderFooter With {
.HtmlFragment = "
<div style='width: 100%; text-align: center; font-size: 12pt; border-bottom: 1px solid #ccc;'>
Company Report
</div>",
.MaxHeight = 30
}
' HTML footer with page numbers
renderer.RenderingOptions.HtmlFooter = New HtmlHeaderFooter With {
.HtmlFragment = "
<div style='width: 100%; text-align: center; font-size: 10pt;'>
Page {page} of {total-pages}
</div>",
.MaxHeight = 25
}
Dim pdf = renderer.RenderHtmlAsPdf("<h1>Content Here</h1>")
pdf.SaveAs("report.pdf")Imports IronPdf
Dim renderer As New ChromePdfRenderer()
' HTML header with full CSS support
renderer.RenderingOptions.HtmlHeader = New HtmlHeaderFooter With {
.HtmlFragment = "
<div style='width: 100%; text-align: center; font-size: 12pt; border-bottom: 1px solid #ccc;'>
Company Report
</div>",
.MaxHeight = 30
}
' HTML footer with page numbers
renderer.RenderingOptions.HtmlFooter = New HtmlHeaderFooter With {
.HtmlFragment = "
<div style='width: 100%; text-align: center; font-size: 10pt;'>
Page {page} of {total-pages}
</div>",
.MaxHeight = 25
}
Dim pdf = renderer.RenderHtmlAsPdf("<h1>Content Here</h1>")
pdf.SaveAs("report.pdf")Scryber.Core通過CSS的counter(pages)表示頁碼。 IronPDF使用全HTML/CSS的{total-pages}。
遷移後的新能力
遷移到IronPDF後,您獲得了Scryber.Core無法提供的功能:
PDF合併
var pdf1 = PdfDocument.FromFile("chapter1.pdf");
var pdf2 = PdfDocument.FromFile("chapter2.pdf");
var pdf3 = PdfDocument.FromFile("chapter3.pdf");
var merged = PdfDocument.Merge(pdf1, pdf2, pdf3);
merged.SaveAs("complete_book.pdf");var pdf1 = PdfDocument.FromFile("chapter1.pdf");
var pdf2 = PdfDocument.FromFile("chapter2.pdf");
var pdf3 = PdfDocument.FromFile("chapter3.pdf");
var merged = PdfDocument.Merge(pdf1, pdf2, pdf3);
merged.SaveAs("complete_book.pdf");Dim pdf1 = PdfDocument.FromFile("chapter1.pdf")
Dim pdf2 = PdfDocument.FromFile("chapter2.pdf")
Dim pdf3 = PdfDocument.FromFile("chapter3.pdf")
Dim merged = PdfDocument.Merge(pdf1, pdf2, pdf3)
merged.SaveAs("complete_book.pdf")Dim pdf1 = PdfDocument.FromFile("chapter1.pdf")
Dim pdf2 = PdfDocument.FromFile("chapter2.pdf")
Dim pdf3 = PdfDocument.FromFile("chapter3.pdf")
Dim merged = PdfDocument.Merge(pdf1, pdf2, pdf3)
merged.SaveAs("complete_book.pdf")安全性和元資料
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf("<h1>Confidential</h1>");
// Metadata
pdf.MetaData.Title = "My Document";
pdf.MetaData.Author = "John Doe";
pdf.MetaData.Subject = "Annual Report";
pdf.MetaData.Keywords = "report, annual, confidential";
// Security
pdf.SecuritySettings.OwnerPassword = "owner123";
pdf.SecuritySettings.UserPassword = "user456";
pdf.SecuritySettings.AllowUserCopyPasteContent = false;
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.FullPrintRights;
pdf.SaveAs("protected.pdf");var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf("<h1>Confidential</h1>");
// Metadata
pdf.MetaData.Title = "My Document";
pdf.MetaData.Author = "John Doe";
pdf.MetaData.Subject = "Annual Report";
pdf.MetaData.Keywords = "report, annual, confidential";
// Security
pdf.SecuritySettings.OwnerPassword = "owner123";
pdf.SecuritySettings.UserPassword = "user456";
pdf.SecuritySettings.AllowUserCopyPasteContent = false;
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.FullPrintRights;
pdf.SaveAs("protected.pdf");Dim renderer = New ChromePdfRenderer()
Dim pdf = renderer.RenderHtmlAsPdf("<h1>Confidential</h1>")
' Metadata
pdf.MetaData.Title = "My Document"
pdf.MetaData.Author = "John Doe"
pdf.MetaData.Subject = "Annual Report"
pdf.MetaData.Keywords = "report, annual, confidential"
' Security
pdf.SecuritySettings.OwnerPassword = "owner123"
pdf.SecuritySettings.UserPassword = "user456"
pdf.SecuritySettings.AllowUserCopyPasteContent = False
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.FullPrintRights
pdf.SaveAs("protected.pdf")Dim renderer = New ChromePdfRenderer()
Dim pdf = renderer.RenderHtmlAsPdf("<h1>Confidential</h1>")
' Metadata
pdf.MetaData.Title = "My Document"
pdf.MetaData.Author = "John Doe"
pdf.MetaData.Subject = "Annual Report"
pdf.MetaData.Keywords = "report, annual, confidential"
' Security
pdf.SecuritySettings.OwnerPassword = "owner123"
pdf.SecuritySettings.UserPassword = "user456"
pdf.SecuritySettings.AllowUserCopyPasteContent = False
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.FullPrintRights
pdf.SaveAs("protected.pdf")功能比較總結
| 功能 | Scryber.Core | IronPDF |
|---|---|---|
| HTML轉PDF | XHTML+CSS通過自定義佈局引擎 | 完整的Chromium |
| URL到PDF | 僅手動提取 | 原生RenderUrlAsPdf |
| CSS網格 | 不支持 | 全面支持 |
| Flexbox | 部分 | 全面支持 |
| JavaScript | 不執行 | 完整(V8) |
| 資料綁定 | {{ }} Handlebars + doc.Params | Razor / RazorLight / 插值 |
| 頁眉/頁腳 | @page 邊距盒 / 模板段 | {page} {total-pages} |
| 合併PDF | 不支持 | 內建的PdfDocument.Merge |
| 拆分PDF | 不支持 | 是 |
| 浮水印 | 通過模板中的重疊HTML | 原生ApplyStamp / ApplyWatermark |
| 數位簽名 | 不支持 | 是 |
| PDF/A | 不支持 | 是的(PDF/A-1b,PDF/A-3) |
| 密碼保護 | 不支持 | 完整(使用者/所有者+權限) |
| 異步支援 | PDFAsync MVC幫助器; sync core | 完整的異步表面 |
| 跨平臺 | 是的(.NET Std 2.0/2.1, .NET 8/9/10) | 是 |
遷移檢查表
遷移前
- 審核所有Scryber模板以獲得XHTML/綁定模式
- 記錄使用的資料綁定模式(
{{model.Property}}) - 確定需要CSS轉換的自定義樣式
- 獲取IronPDF授權金鑰來自ironpdf.com
程式碼更新
- 移除
Scryber.CoreNuGet包 - 安裝
IronPdfNuGet包 - 更新命名空間引入(
using Scryber.Components;/Scryber.Drawing;/Scryber.PDF;→using IronPdf;) - 用
Document.ParseDocument(reader, "", ParseSourceType.DynamicContent) - 用
doc.SaveAsPDF(stream) - 將XHTML模板轉換為普通HTML5(無需命名空間要求)
- 用標準模板(Razor / 字串插值)替換
{{ }}Handlebars綁定 - 將
@pageCSS移到renderer.RenderingOptions(PaperSize, MarginTop等) - 將
{total-pages}佔位符 - 在應用程式啟動時新增授權初始化
測試
- 測試所有文件模板
- 驗證樣式是否匹配(利用完整的CSS支持)
- 測試新的模板中的資料綁定
- 驗證分頁斷點
- 使用頁碼佔位符測試頁眉/頁腳
- 性能比較
[{(Scryber是其相關所有者的註冊商標。 本網站未與PerceiveIT Limited關聯、未經其認可或贊助。 所有產品名稱、標誌和品牌均為其各自所有者的財產。 比較僅供參考,反映撰寫時公開可用的資訊。)}]
Curtis Chau擁有Carleton大學的電腦科學學士學位,專精於前端開發,擁有Node.js、TypeScript、JavaScript和React的專業知識。Curtis熱衷於建立直觀且美觀的使用者介面,喜愛使用現代框架並建立結構良好、視覺吸引力的手冊。
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