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Mofumi PDF

PDF to PDF/A

Beta

Prepare a PDF for long-term archiving with PDF/A-1b, 2b or 3b metadata, colour profile and a compliance check.

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About this tool

PDF/A is the ISO standard for documents that must stay readable for decades. It requires the file to be self-contained: fonts embedded, colours defined by an ICC profile, metadata in XMP, and no encryption, JavaScript or external content.

This tool performs the structural part of the conversion in your browser: it removes encryption, scripts and (for PDF/A-1 and 2) embedded files, makes annotations printable, embeds an sRGB output intent, adds a document ID and writes XMP metadata declaring the PDF/A level. It then audits what it cannot fix on its own — most importantly fonts that are not embedded and, for PDF/A-1, transparency.

A complete conversion that re-embeds fonts and flattens transparency needs a Ghostscript-class engine, which carries an AGPL licence and is not used here. That's why this tool is in beta: for files with embedded fonts the result usually validates, but always check it with veraPDF if your archive must be certified.

Engines: pdf-lib

How to use

  1. 1

    Drop the PDF you want to archive.

  2. 2

    Choose the conformance level — PDF/A-2b is the best choice for most documents.

  3. 3

    Click Convert to PDF/A, then review the checklist and any warnings.

Use cases

  • Government submissions

    Many e-filing systems and courts ask for PDF/A documents.

  • Company archives

    Store contracts and invoices in a format designed to open reliably in the future.

  • Theses and reports

    Universities often require PDF/A for the official copy of a thesis.

Frequently asked questions

Which level should I choose?

PDF/A-2b for most files — it allows transparency and layers. PDF/A-1b is the strictest and oldest. PDF/A-3b also allows any embedded attachment, such as the XML of an e-invoice.

Why do I get a font warning?

The original file uses fonts that aren't embedded. PDF/A forbids that. Re-export the document from Word or your design app with font embedding on, then convert again.

Is the result guaranteed to be compliant?

No. It's a best-effort conversion; the checklist tells you what was done and what remains. Validate with veraPDF for certainty.

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