Convert PDF to PDF/A Online for Free
Prepare your PDF for long-term archiving — no upload, no signup, up to 100 MB.
Your file never leaves your deviceDrag & drop your PDF here
or Max 100 MB · Free · Processed entirely in your browserHow to Convert a PDF to PDF/A
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Upload your PDF Drag & drop or browse your PDF.
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Confirm No settings needed — we convert to PDF/A-1b automatically.
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Download Save your archival-ready PDF instantly.
Built for the long haul
- Private by designYour PDF is processed on your device and never uploaded.
- InstantNo upload queue — your browser does the work locally.
- Free, no signupNo account, no credit card, no trial that expires.
- PDF/A-1b metadataAdds standard archival identification so viewers and validators recognize the intent.
- Font-embedding checkWe report how many fonts are embedded, since that's what most validators actually flag.
Frequently Asked Questions
Is it free?
Yes. No signup required.
Is my file safe?
Yes — your PDF is processed entirely in your browser and never uploaded.
What is PDF/A?
It's an ISO-standardized version of PDF designed for long-term archiving — it requires self-contained files with no JavaScript, no encryption, and embedded fonts, so the document looks the same decades from now regardless of what software opens it.
Does this guarantee my file passes strict PDF/A validation?
Not fully — we remove JavaScript and encryption and add PDF/A-1b identification metadata, all genuine fixes, but we can't embed fonts we don't have access to in your browser. If any fonts in your original PDF weren't already embedded, a strict validator (like veraPDF) may still flag the file — we tell you how many fonts are embedded so you know where you stand.
Why might some fonts not be embedded?
Standard system fonts your PDF assumes are installed (like Arial or Times New Roman) are sometimes referenced by name instead of embedded in the file — that's set by whatever tool created the original PDF, not something we can fix after the fact in a browser.
Are there settings to configure?
No — conversion targets PDF/A-1b automatically. Just upload your file and confirm.
Max file size?
100 MB.