Add Bates numbers to PDFs online

Stamp sequential Bates numbers on every page of one PDF or a whole production. Set a prefix like ABC, choose how many digits to pad to, and the numbers run on from one file to the next in the order you set. You get back a ZIP with every stamped PDF and a CSV production index. The files are stamped inside this browser tab — never uploaded — with no sign-up or watermark.

How to Bates number PDFs

  1. Drop one or more PDFs into the box above, or click to browse.
  2. Put the files in production order by dragging them or using the arrow buttons. Each file shows the Bates range it will receive.
  3. Set a prefix, the start number, and the number of digits. Add a suffix if your numbering scheme uses one.
  4. Pick one of six positions and click Stamp & Download ZIP.

Numbering across several files

Numbers continue from file to file: if the first PDF has 12 pages and starts at ABC000001, the second begins at ABC000013. Reorder the list and the ranges update before anything is stamped.

Every page gets a number, including blank and cover pages, so the range accounts for every page produced.

The production index

The ZIP includes production-index.csv with one row per file: the file name, its first and last Bates number, and its page count. It opens in Excel or Google Sheets, ready to paste into a production log or cover letter.

Prefixes, digits and positions

The number is padded with zeros to the digit count you choose, from 1 to 12 digits, so ABC with 6 digits reads ABC000001. If the production would run past the largest number that fits, the tool tells you and offers to add a digit — it never wraps back to zero.

Numbers can sit at the top or bottom of the page, on the left, center, or right, in Helvetica, Courier, or Times Roman. A white background behind the number keeps it legible on scanned pages, and rotated pages are stamped upright as they appear on screen.

A Bates numbering tool that does not upload your files

Discovery documents are often confidential. This tool edits the PDFs with your browser's own PDF engine, so nothing is sent to a server and closing the tab discards the files. There is no account, no watermark, and no limit on the number of files or pages.

What it does not do

Prefixes and suffixes are limited to characters the standard PDF fonts can print, which covers English and Western European letters. Password-protected PDFs are skipped, so remove the password first. Each file can be up to 50 MB. The tool adds numbers only; it does not redact pages or add confidentiality endorsements. Stamping re-saves the PDF, so any existing digital signatures will no longer validate — stamp before signing.

Frequently asked questions

Is this Bates numbering tool free?

Yes. There is no sign-up, no watermark, and no limit on how many files or pages you number.

Are my files uploaded?

No. Numbering happens locally in your browser. Nothing is sent to a server, and closing the tab discards the files.

Can I Bates number multiple PDFs at once?

Yes. Add as many PDFs as you need, put them in order, and the numbering continues from one file to the next. You download everything as one ZIP.

What is a Bates prefix?

A short code printed before the number, often a party or matter abbreviation such as ABC or SMITH. Leave it blank for plain numbers.

How many digits should a Bates number have?

Six to eight digits is common. Choose enough for the whole production: starting at 1, six digits cover 999,999 pages.

Can I continue numbering from an earlier production?

Yes. Set the start number to one more than the last number you used, and keep the same prefix and digits.

What is in the CSV index?

One row per file with the file name, begin Bates number, end Bates number, and page count.

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