PDF/A vs normal PDF: what is the difference?

PDF/A is an archival profile designed for long-term preservation. A normal PDF is a general document format with fewer archival requirements.

Why PDF/A exists

PDF/A embeds or restricts dependencies such as fonts, encryption and external content so a file is more reproducible in the future.

When to choose PDF/A

Use it when an archive, regulator or records policy explicitly asks for PDF/A. It can be a poor fit for interactive forms, multimedia or workflows that need editing.

Check the requirement

PDF/A has multiple conformance levels. Verify the requested profile and validate the final file with an archival validator.