How to convert a PDF to PDF/A for archiving
PDF/A is a specialised version of PDF designed for long-term archiving. It embeds everything a document needs to display correctly — fonts, colour information and metadata — and forbids features that could break over time, such as external links or encryption. Converting to PDF/A produces a self-contained file that will still open and look right decades from now.
Many institutions and legal frameworks require PDF/A for records that must be preserved, and this tool makes the conversion in one step.
A useful mental model: an ordinary PDF is allowed to depend on the outside world — fonts installed on the reader’s machine, linked resources, scripts — while a PDF/A must carry everything on board and is banned from anything that could stop working. That is the entire standard in one sentence, and it is why archives trust the format.
Step by step
- Open the PDF to PDF/A tool and upload your document.
- Press Process to convert it to the archival standard.
- Wait while fonts and resources are embedded into the file.
- Confirm the result is a valid PDF/A document.
- Download your archival-ready PDF.
Limits and formats at a glance
| Input | Any standard PDF up to 20 MB free (1 GB with PRO) |
|---|---|
| Output | A self-contained archival PDF/A with fonts and colour profiles embedded |
| Forbidden by the standard | Encryption, JavaScript, audio/video, external references |
| Appearance | Unchanged — the document looks exactly as before |
| Typically required by | Courts, public administration, tenders, thesis repositories |
| Cost | Free, no account required |
Why use this tool
Ordinary PDFs can rely on fonts or links that may not exist in the future, so a file that looks perfect today might render incorrectly years later. PDF/A removes that risk by packaging everything inside the document, which is why archives, courts and public bodies mandate it for permanent records.
For anyone keeping contracts, certificates or compliance documents, converting to PDF/A is an inexpensive insurance policy against format obsolescence.
It is frequently a hard requirement rather than a nice-to-have: many court e-filing systems, government tenders, university thesis repositories and ISO records-management policies will only accept PDF/A. Converting up front means your submission is not bounced back, and the same self-contained file remains readable whether it is opened next week or in twenty years.
A sensible archiving routine combines a few tools: make the document searchable first with OCR if it started life as a scan, convert to PDF/A for the record copy, and keep that copy unencrypted in controlled storage — the standard forbids passwords precisely so the file can always be opened. For everyday sharing, circulate an ordinary copy shrunk with Compress PDF and leave the archival original untouched.
Is it safe? Your privacy
The document you upload is used only for the conversion and is erased from our servers automatically within minutes. Its contents are never stored or examined.
Troubleshooting: common problems and fixes
- The output is noticeably larger than the original. — That is expected: full fonts and colour profiles are now embedded so the file is self-contained. The increase is the price of guaranteed future rendering.
- My password-protected file is rejected. — PDF/A forbids encryption. Remove the password with Unlock PDF, convert, and control access by storing the archival copy somewhere secure instead.
- A scanned document converted, but it is still not searchable. — PDF/A fixes preservation, not recognition. Run OCR PDF before converting so the archived file is searchable too.
- The recipient requires a specific conformance level. — Check their submission guidance. The tool produces a broadly compatible archival profile; if a system validates strictly against one level, test your file in their portal well before the deadline.
Frequently asked questions
What is the difference between PDF and PDF/A?
PDF/A is a restricted, self-contained profile of PDF built specifically for reliable long-term preservation.
Will the file look different?
No. It looks the same; it simply embeds everything needed to keep looking that way over time.
Why must fonts be embedded?
So the text always renders with the exact typefaces it was created in. If a font were only referenced, a future system without it would substitute another and change how the page looks — PDF/A forbids that.
Can a PDF/A be encrypted or have external links?
No. The standard bans encryption, audio/video and links to external resources, because anything outside the file could become unavailable. Everything needed must live inside the document.
Which PDF/A level do I get?
The tool produces a broadly compatible archival profile suitable for typical records. If a body specifies an exact conformance level (for example PDF/A-1b or PDF/A-2b), check their guidance.
Can I still edit a PDF/A later?
You can, but editing may break its conformance. Keep your working PDF for changes and generate a fresh PDF/A whenever you need a new archival copy.
Should I archive as PDF/A even when nobody requires it?
For documents with a long life — contracts, diplomas, medical records, anything you may need in ten years — yes. The cost is a click today; the alternative is hoping ordinary files age well.
Does PDF/A make the document legally valid?
PDF/A guarantees faithful long-term rendering, which supports admissibility, but validity depends on content and signatures. Check the requirements of the authority you are filing with.