using IronPdf;// Open PDF FilePdfDocument pdf = PdfDocument.FromFile("wikipedia.pdf");// Export as PDF/UA. Pass the document's natural language so assistive// technologies announce the correct pronunciation.pdf.SaveAsPdfUA("pdf-ua-wikipedia.pdf", NaturalLanguage: NaturalLanguages.English);
using IronPdf;
// Open PDF File
PdfDocument pdf = PdfDocument.FromFile("wikipedia.pdf");
// Export as PDF/UA. Pass the document's natural language so assistive
// technologies announce the correct pronunciation.
pdf.SaveAsPdfUA("pdf-ua-wikipedia.pdf", NaturalLanguage: NaturalLanguages.English);
C#
输出
导出文件通过了veraPDF一致性检查器的PDF/UA-1验证：
PDF/UA-1 和 PDF/UA-2 有什么区别？
**PDF/UA-1 (ISO 14289-1)**是于2012年发布的原始通用可访问性标准，设置了可访问文件的基准：标记内容、辅助技术支持和定义的阅读顺序。
**PDF/UA-2 (ISO 14289-2:2024)**是当前版本。 它增加了对现代PDF特性的处理，例如表单字段、注释、多媒体和嵌套文档结构，并与PDF 2.0规范保持一致，同时保持以前版本的可访问性保证。
请注意: PDF/UA-2基于PDF 2.0通过QPDF编写，具有其更新的功能集和格式兼容性。
要针对PDF/UA-2，传递版本到SaveAsPdfUA方法中：
using IronPdf;// Load existing PDFvar pdf = PdfDocument.FromFile("input.pdf");// Export as PDF/UA-2 formatpdf.SaveAsPdfUA("output_pdfua2.pdf", PdfUAVersions.PdfUA2);
using IronPdf;
// Load existing PDF
var pdf = PdfDocument.FromFile("input.pdf");
// Export as PDF/UA-2 format
pdf.SaveAsPdfUA("output_pdfua2.pdf", PdfUAVersions.PdfUA2);
using IronPdf;// Open PDF FilePdfDocument pdf = PdfDocument.FromFile("input.pdf");// Convert to PDF/UA-2 in memorypdf.ConvertToPdfUA(PdfUAVersions.PdfUA2);// Perform additional modifications if needed// ...// Save the converted documentpdf.SaveAs("output-ua2.pdf");
using IronPdf;
// Open PDF File
PdfDocument pdf = PdfDocument.FromFile("input.pdf");
// Convert to PDF/UA-2 in memory
pdf.ConvertToPdfUA(PdfUAVersions.PdfUA2);
// Perform additional modifications if needed
// ...
// Save the converted document
pdf.SaveAs("output-ua2.pdf");
ImportsIronPdf' Open PDF FileDim pdf AsPdfDocument = PdfDocument.FromFile("input.pdf")' Convert to PDF/UA-2 in memorypdf.ConvertToPdfUA(PdfUAVersions.PdfUA2)' Perform additional modifications if needed' ...' Save the converted documentpdf.SaveAs("output-ua2.pdf")
Imports IronPdf
' Open PDF File
Dim pdf As PdfDocument = PdfDocument.FromFile("input.pdf")
' Convert to PDF/UA-2 in memory
pdf.ConvertToPdfUA(PdfUAVersions.PdfUA2)
' Perform additional modifications if needed
' ...
' Save the converted document
pdf.SaveAs("output-ua2.pdf")
请注意: SaveAs()之前运行。
SaveAsPdfUA()为您在一次调用中执行转换。）
)}]
我最喜欢的这种库是 IronPDF。它允许快速高效地操作 PDF 文件。它还具有许多有价值的功能，比如导出为 PDF/A 格式和数字签名 PDF 文档。
using IronPdf;ChromePdfRenderer renderer = new ChromePdfRenderer();// Render semantic HTML straight to PDF/UA. Pass the natural language so// screen readers announce the correct pronunciation.var pdf = renderer.RenderHtmlAsPdfUA(@" <!DOCTYPE html> <html lang=""en""> <head> <title>Document</title> </head> <body> <h1>Heading 1</h1> <h2>Heading 2</h2> <p>Paragraph text</p> </body> </html>", NaturalLanguages.English);// PDF/UA requires a document Title in the metadatapdf.MetaData.Title = "Accessible Report";pdf.SaveAs("html-string-ua-ironpdf.pdf");
using IronPdf;
ChromePdfRenderer renderer = new ChromePdfRenderer();
// Render semantic HTML straight to PDF/UA. Pass the natural language so
// screen readers announce the correct pronunciation.
var pdf = renderer.RenderHtmlAsPdfUA(@"
<!DOCTYPE html>
<html lang=""en"">
<head>
<title>Document</title>
</head>
<body>
<h1>Heading 1</h1>
<h2>Heading 2</h2>
<p>Paragraph text</p>
</body>
</html>", NaturalLanguages.English);
// PDF/UA requires a document Title in the metadata
pdf.MetaData.Title = "Accessible Report";
pdf.SaveAs("html-string-ua-ironpdf.pdf");
using IronPDF 导出 PDF/UA 文档后，您可以使用 veraPDF Conformance Checker 软件验证其一致性，以确保它符合所有可访问性要求。
What are the benefits of producing PDF/UA compliant documents?
PDF/UA compliant documents offer enhanced accessibility for users with visual impairments, improved mobile reading, better searchability, legal compliance (such as Section 508), and longevity across platforms and software updates.
How can I ensure that a PDF document's headings and structure convert correctly to PDF/UA?
To ensure correct conversion to PDF/UA, prepare the source document with appropriate headings, image alt text, and a logical layout. Make sure the document is structured well before conversion in IronPDF.
What steps are involved in creating a PDF/UA compliant document with IronPDF?
To create a PDF/UA compliant document with IronPDF: 1) Download the library, 2) Import an existing PDF, 3) Edit as needed, 4) Export using `SaveAsPdfUA`, and 5) Validate compliance using the veraPDF Checker.
Can IronPDF handle large-scale PDF/UA document production?
Yes, IronPDF facilitates large-scale PDF/UA document production by integrating with operations like merging and splitting PDFs. This allows for high-volume and compliant document assembly within enterprise workflows.
