How to Add Bates Numbering to a PDF
Updated July 13, 2026
If you’ve never handled legal discovery, “Bates numbering” might sound obscure: it’s simply a unique, sequential label stamped on every page of a document set — usually a prefix followed by a zero-padded number, like ABC-000001, ABC-000002, and so on — so that any single page can be cited precisely by its number. It’s standard practice in litigation, contracts, and audited records.
Steps
- Drop your PDF above.
- Set your prefix, starting number, digit count, and where the stamp sits.
- Click Add Bates numbers, then download the PDF.
Full control over the format
You choose a prefix and an optional suffix, the number to start counting from, and how many digits to pad to so the numbers line up neatly across a large set. You also pick which corner the stamp sits in and its font size, with a live preview showing exactly how the first number will look before you commit to it.
Notes
Everything runs locally, so even privileged documents stay on your device throughout. If you need ordinary page numbers rather than a Bates sequence, Add Page Numbers is the simpler tool; for repeating text in the margins beyond just numbers, see Header & Footer.