Convert PDF to PDF/⁠A

Make a PDF ready for long-term archiving, as PDF/A-2b.

or drag and drop files here

Your files are processed on this device and never uploaded.

Convert a PDF to PDF/A-2b, the archive version of PDF that archives, courts and tax offices ask for when a document has to stay readable for years. The tool embeds the fonts, removes scripts and passwords, fixes the colors and writes the metadata an archive expects, then checks the result on your device before it calls it PDF/A. It is free, needs no account and adds no watermark, and your file never leaves your phone or computer.

Why convert to PDF/A here

Made for the long term

PDF/A is the ISO standard for archiving. Everything needed to show the pages is stored inside the file, so it opens the same way in twenty years.

Fonts embedded for you

Text that relies on fonts installed on your computer gets a metric-compatible font embedded, so lines break in the same places on every device.

Scripts and actions removed

JavaScript, launch actions, file attachments and other things an archive cannot keep are taken out. Form fields are flattened into the page.

Checked before it is called PDF/A

Our own check runs on the result in your browser. If a file can't be made compliant, you get a clear message instead of a file that only claims to be PDF/A.

Several files at once

Add a batch of invoices or letters and convert them in one go. Several files download together as one ZIP.

Private by design

The conversion runs on your device. Contracts, tax invoices and court papers are never uploaded to a server.

How to use 3 steps

  1. 01

    Select or drop one or more PDF files into the box above.

  2. 02

    Click "Convert to PDF/A" and wait while each file is converted and checked.

  3. 03

    Download your PDF/A file, or one ZIP when you added several.

What does converting to PDF/A change?

A normal PDF can depend on things outside the file: fonts installed on the computer that made it, a script that runs when it opens, a password, colors that only make sense on one printer. Any of these can make the document look different, or not open at all, years later. PDF/A removes those dependencies so the file carries everything it needs.

When you convert, the tool does the following:

  • Embeds fonts. Standard fonts such as Helvetica, Arial, Times and Courier that are not stored in the file get a metric-compatible font embedded, so every word stays in the same place.
  • Removes JavaScript, launch actions, file attachments and other content an archive can’t keep.
  • Flattens form fields into the page, so filled-in answers stay visible but can no longer be changed.
  • Removes owner passwords and printing or copying restrictions, because PDF/A does not allow encryption.
  • Adds an sRGB color profile so colors are defined the same way everywhere, and a CMYK profile when the file uses print colors.
  • Writes PDF/A identification and matching document information (title, author, dates) as XMP metadata.

Tip: Convert to PDF/A as the last step. Fill in forms, sign, add page numbers and compress first, because a PDF/A file is meant to stay as it is.

When do you need PDF/A?

Whenever a document has to stay readable long after you made it. Typical cases:

  • Tax records. Businesses often have to keep invoices and tax documents for ten years, for example e-Faktur invoices in Indonesia. Converting them to PDF/A keeps the archive readable when today’s software is long gone.
  • Job applications and official portals. Some application and government portals ask for PDF/A uploads, so the file they store looks the same to every reviewer.
  • Court and legal documents. Many e-filing systems and law firms prefer or require PDF/A for filings, evidence and signed agreements.
  • Theses, reports and company records that a library or an archive will keep.

If a portal only says “PDF”, a normal PDF is fine. Use PDF/A when the instructions name it, or when you are building your own long-term archive.

Which PDF/A version does this tool make?

It makes PDF/A-2b. Part 2 is the version most archives accept today. It keeps transparency, layers and modern image compression, so files are smaller and look better than with the older PDF/A-1. Level B means the visual appearance is preserved. Levels A and U add requirements about document structure and text that most existing PDFs don’t meet, so they are not offered here.

How is the result checked, and what are the limits?

After converting, the tool checks the new file on your device: are all fonts embedded, is the color profile there, is the PDF/A metadata correct, are scripts and forbidden actions gone. Only when that check passes does the result say “PDF/A-2b ready”. The check covers what the converter is responsible for. It is not a certified validator, so for a formal submission, use the validator the receiving archive names.

Some files can’t be converted. A font that is damaged inside the file can’t be made compliant, and in that case you get a clear message instead of a file that only pretends to be PDF/A. A page that relies on a font with no free replacement is turned into an image, which keeps its look exactly, and the result tells you how many pages that happened to. Scanned PDFs convert fine, but they stay pictures of text: run OCR first if you want them searchable.

Related tools

Questions answered

What is PDF/A-2b?

PDF/A is the ISO 19005 standard for keeping documents readable for a long time. Part 2 is based on modern PDF and allows things like transparency and JPEG 2000 images. Level B, for basic, guarantees that the pages look exactly the same in any viewer, years from now, because fonts, colors and metadata are all stored inside the file.

How do I convert a PDF to PDF/A for free?

Add the PDF above, click "Convert to PDF/A" and download the result. It is free, with no account, no watermark and no limit on the number of files.

Is the result validated?

Each file goes through our own check on your device, which confirms what the converter is responsible for, such as embedded fonts, the color profile, the PDF/A metadata and the absence of scripts. It is not a certified validator. If an archive asks for a validation report, run the file through the validator they name.

Why did some pages turn into images?

A page that uses a font which is not stored in the file and has no free, compatible replacement can't be made PDF/A as it is. Those pages are turned into images so they look exactly the same, and the result tells you how many pages that happened to.

Can I convert a password-protected PDF to PDF/A?

PDF/A does not allow encryption, so the password is removed. A PDF that only restricts printing or copying converts directly. A PDF that asks for a password to open has to be unlocked first with the Unlock PDF tool.

Is it safe to convert confidential documents?

Yes. The PDF is read and converted inside your browser, on your own device. Nothing is uploaded, so a tax invoice, a contract or a court filing never reaches a server.