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我正在使用 IronPDF 在 .NET 中生成 PDF 文档。我希望在奇数页和偶数页上有不同的标题。

基于提供的所有 IronPDF API，每个页面的页眉和页脚应该相同。例如：

using IronPdf;
 
 
IronPdf.ChromePdfRenderer Renderer = new IronPdf.ChromePdfRenderer();
 
// Add a header to every page easily
Renderer.RenderingOptions.FirstPageNumber = 1; // use 2 if a cover page  will be appended
Renderer.RenderingOptions.TextHeader.DrawDividerLine = true;
Renderer.RenderingOptions.TextHeader.CenterText = "{url}";
Renderer.RenderingOptions.TextHeader.FontFamily = "Helvetica,Arial";
Renderer.RenderingOptions.TextHeader.FontSize = 12;
 
// Add a footer too
Renderer.RenderingOptions.TextFooter.DrawDividerLine = true;
Renderer.RenderingOptions.TextFooter.FontFamily = "Arial";
Renderer.RenderingOptions.TextFooter.FontSize = 10;
Renderer.RenderingOptions.TextFooter.LeftText = "{date} {time}";
Renderer.RenderingOptions.TextFooter.RightText = "{page} of {total-pages}";

来源：https ://ironpdf.com/tutorials/html-to-pdf/

有没有办法改变这种行为，以便我可以在偶数页和/或奇数页上使用自定义页眉和页脚？在特定页面上怎么样，例如只有第 6 页和第 9 页？

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2 回答 2

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// PM> Install-Package IronPdf


using IronPdf;
using System.Collections.Generic;
using System.Linq;
 
 
//First create a PDF or Load an existing PDF using IronPdf.PdfDocument.Load()
var Renderer = new IronPdf.ChromePdfRenderer();
var multi_page_html = @"
            <p> This is 1st Page</p>
              <div style = 'page-break-after: always;' ></div>
              <p> This is 2nd Page</p>
            <div style = 'page-break-after: always;' ></div>
              <p> This is 3rd Page</p>
            <div style = 'page-break-after: always;' ></div>
              <p> This is 4th Page</p>
            <div style = 'page-break-after: always;' ></div>
              <p> This is 5th Page</p>
            <div style = 'page-break-after: always;' ></div>
              <p> This is 6th Page</p>
            <div style = 'page-break-after: always;' ></div>
              <p> This is 7th Page</p>";
 
using IronPdf.PdfDocument pdfdoc = Renderer.RenderHtmlAsPdf(multi_page_html);
 
 
// Create a Header
var header = new HtmlHeaderFooter();
header.HtmlFragment = "THIS IS HEADER {page} of {total-pages}";
 
 
// Create a Page Range  0 .. 7
var allPageIndexes = Enumerable.Range(0, pdfdoc.PageCount);
 
// Example 1
// Apply header to even page index only. (page number will be odd number because index start at 0 but page number start at 1)
var evenPageIndexes = allPageIndexes.Where(i => i % 2 == 0);
pdfdoc.AddHtmlHeaders(header, 1, evenPageIndexes);
pdfdoc.SaveAs("EvenPages.pdf");
 
 
// Example 2
//Apply header to odd page index only. (page number will be even number because index start at 0 but page number start at 1)
var oddPageIndexes = allPageIndexes.Where(i => i % 2 != 0);
pdfdoc.AddHtmlHeaders(header, 1, oddPageIndexes);
pdfdoc.SaveAs("OddPages.pdf");
于 2021-10-29T07:10:16.237 回答
0

从 HTML 呈现 PDF 时，我同意页眉/页脚选项是有限的。

不过有一个解决方案：在呈现 pdf 之后添加页眉和页脚。

  1. IronPDF 渲染创建一个IronPDF.PdfDocument类实例。

  2. 此类IronPDF.PdfDocument实例具有仅将页眉和页脚添加到特定页码的方法。

此方法支持将基于文本和 HTML 的标题添加到 PDF。

MSDN 风格文档：

代码示例：

// PM> Install-Package IronPdf
 
using IronPdf;
using System.Collections.Generic;
using System.Linq;
 
 
//First create a PDF or Load an existing PDF using IronPdf.PdfDocument.Load()
var Renderer = new IronPdf.ChromePdfRenderer();
var multi_page_html = @"
            <p> This is 1st Page</p>
              <div style = 'page-break-after: always;' ></div>
              <p> This is 2nd Page</p>
            <div style = 'page-break-after: always;' ></div>
              <p> This is 3rd Page</p>
            <div style = 'page-break-after: always;' ></div>
              <p> This is 4th Page</p>
            <div style = 'page-break-after: always;' ></div>
              <p> This is 5th Page</p>
            <div style = 'page-break-after: always;' ></div>
              <p> This is 6th Page</p>
            <div style = 'page-break-after: always;' ></div>
              <p> This is 7th Page</p>";
 
using IronPdf.PdfDocument pdfdoc = Renderer.RenderHtmlAsPdf(multi_page_html);
 
 
// Create a Header
var header = new HtmlHeaderFooter();
header.HtmlFragment = "THIS IS HEADER {page} of {total-pages}";
 
 
// Create a Page Range  0 .. 7
var allPageIndexes = Enumerable.Range(0, pdfdoc.PageCount);
 
// Example 1
// Apply header to even page index only. (page number will be odd number because index start at 0 but page number start at 1)
var evenPageIndexes = allPageIndexes.Where(i => i % 2 == 0);
pdfdoc.AddHtmlHeaders(header, 1, evenPageIndexes);
pdfdoc.SaveAs("EvenPages.pdf");
 
 
// Example 2
//Apply header to odd page index only. (page number will be even number because index start at 0 but page number start at 1)
var oddPageIndexes = allPageIndexes.Where(i => i % 2 != 0);
pdfdoc.AddHtmlHeaders(header, 1, oddPageIndexes);
pdfdoc.SaveAs("OddPages.pdf");
 
 
// Example 3
// Apply header to last page only.
var lastPageIndex = new List<int>() { pdfdoc.PageCount - 1 };
pdfdoc.AddHtmlHeaders(header, 1, lastPageIndex);
pdfdoc.SaveAs("LastPageOnly.pdf");
 
// Example 4
// Apply header to first page only.
var firstPageIndex = new List<int>() { 0 };
pdfdoc.AddHtmlHeaders(header, 1, firstPageIndex);
pdfdoc.SaveAs("FirstPageOnly.pdf");
 
// Example 5
// Skip the first page.
var skipFirstPageIndexes = allPageIndexes.Skip(1);
var fileName = "SkipFirstPage.pdf";
pdfdoc.AddHtmlHeaders(header, 1, skipFirstPageIndexes);
pdfdoc.SaveAs("SkipFirstPage.pdf");
 
 
// Example 6
// Skip first page and make second pages label as 1.
 var skipFirstPageIndexes = allPageIndexes.Skip(1);
pdfdoc.AddHtmlHeaders(header, 0, skipFirstPageIndexes);
pdfdoc.SaveAs("SkipFirstPageAndDontCountIt.pdf");

来源：https ://ironpdf.com/examples/adding-headers-and-footers-advanced/ 相关问题（但不相同）：IronPdf - 如何在将 HTML 转换为 PDF 时使页眉和页脚不覆盖页面内容？

于 2021-10-29T07:18:13.607 回答