What Is PDF/A and When Should You Use It?
Try it now with our free PDF to PDF/A tool — no sign-up, files deleted after download.
If you have ever been asked to submit a document as "PDF/A" and wondered whether that was a typo, you are not alone. PDF/A is a real and specific variant of the PDF format, built for one purpose: making sure a document is still readable, and still looks the same, many years from now.
The problem of long-term readability
Ordinary PDFs can depend on things that may not survive the passage of time — fonts that are not embedded, links to external resources, or features that future software might handle differently. For a document you need to keep for five, ten, or fifty years — a contract, a court record, a financial statement — that uncertainty is a real risk.
How PDF/A removes that risk
PDF/A is an ISO-standardised version of PDF that locks the document down for archiving. It enforces a few key rules:
- All fonts must be embedded, so text never depends on the reader's system.
- No external dependencies — everything needed to display the file lives inside it.
- No encryption that could later block access.
- Self-contained colour and metadata, so the document renders consistently far into the future.
The result is a file engineered to open and look correct decades from now, regardless of how technology evolves.
Who needs it
- Legal and government bodies with statutory retention requirements.
- Finance and accounting teams archiving records for audits.
- Libraries and universities preserving research and publications.
- HR departments keeping personnel files for the long term.
How to convert
- Open the PDF to PDF/A tool and upload your document.
- The file is converted to the archival standard, with fonts embedded and the format validated.
- Download your PDF/A file, ready for long-term storage.
If you later need to work with the content again, you can still convert it to Word or run it through any of the other tools as normal.
Ready to go? Open PDF to PDF/A →