C# PDF/A Converter Library

Convert 100+ file formats into ISO-compliant PDF/A files that pass the veraPDF validator and the Adobe Acrobat Preflight tool. Our converter library supports converting to any PDF/A substandard (PDF/A-1 to PDF/A-4) in your C# application. It includes PDF/A validation to automatically determine conformance of your PDF/A files by analyzing PDF structure; lexical, syntactic, and semantic levels; and metadata, fonts, color space, and other properties. Explore our guides and code samples to learn how you can quickly integrate our PDF/A conversion technology into your application or workflow.

PSPDFKit SDKs are deployed in some of the world’s most popular applications, such as those made by Autodesk, Disney, DocuSign, Dropbox, IBM, and Lufthansa.

Key Capabilities

  • ISO compliant — Passes the veraPDF validator and Adobe Acrobat Preflight tool

  • 100+ file types — Convert PDFs, images, MS Office files, and more into PDF/A

  • All PDF/A substandards — Supports converting to all conformance levels (PDF/A-1 to PDF/A-4)

  • PDF/A validation — Determines PDF/A conformance by analyzing PDF structure; lexical, syntactic, and semantic levels; and metadata, fonts, color space, and other properties

  • Searchable — Convert documents to fully searchable PDF/A files

  • Compression — Reduce storage by combining valid PDF/A conversions with compression technology

Guides for PDF/A

Convert to PDF/A
Learn how to convert files to ISO-compliant PDF/A

Validate PDF/A
Learn how to validate ISO-compliant PDF/A documents