PDF/A-2b: practical baseline
PDF/A can improve archival and compatibility consistency, but acceptance still depends on each portal.
- Use PDF/A only when the destination requires it.
- Keep an original copy for legal workflows/signatures.
- Check destination guidance after conversion.
Related portals: USPTO, GENERAL, CEAC.
Disclaimer: Not affiliated with any government authority.
Disclaimer: We do not guarantee acceptance; requirements may change.
Sources + date checked: Public standards/portal docs checked on 2026-02-20.