ONYXPDF
by Onyx AI Labs
100% private — files never leave this device
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Bates Numbering — Free, In Your Browser

Stamp sequential Bates numbers on every page of a PDF — the legal and records standard for exhibits and discovery: your prefix (like EXHIBIT-), zero-padded numbers, your starting point, placed where you choose. No desktop software, no upload of privileged documents.

No upload · No sign-up · No file-size cap · Works offline after first load

How to apply Bates numbering to a PDF with OnyxPDF

  1. Drop your PDF into the tool.
  2. Set the prefix and optional suffix, the starting number and how many digits (zero-padded).
  3. Choose the position and size.
  4. Click “Apply Bates Numbers” and download the stamped PDF.

Why do it in your browser instead of uploading?

Good to know (honest limits)

Frequently asked questions

What is Bates numbering?

A sequential page-labelling system used in legal, medical and business records — each page gets a unique identifier like EXHIBIT-000123, so any page can be cited exactly.

Can I continue numbering across several PDFs?

Yes. Note the last number of one document and set it (+1) as the start number for the next.

Where is the number placed?

In the position you pick from the standard grid (bottom-right is the legal convention), at your chosen size.

Are my documents uploaded?

No — for legal work that is the deciding feature. Stamping runs entirely in your browser.

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