Free Online PDF Tool
Convert PDF to PDF/A
Convert a regular PDF into PDF/A — the ISO standard for long-term archiving that embeds everything needed to render the document identically, decades from now.
Open PDF to PDF/A →No signup required · Free up to 20MB per file
How to Use PDF to PDF/A
- Upload the PDF you want to archive.
- Click Convert.
- Download the PDF/A version.
Frequently Asked Questions
Why would I need PDF/A instead of a regular PDF?
PDF/A is often required for legal, government, or institutional archiving because it guarantees the document will render identically in the future, independent of external fonts or resources.
Is this tool free?
This conversion is a LONX DOC Pro feature. Free accounts don't have access — upgrade to Pro to unlock it, along with higher file-size and page limits.