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Bates Numbering

Stamp unique Bates numbers like ABC000001 on every page, continuing across many PDFs.

Free, no uploads, no sign-up. Runs 100% in your browser.

How Bates Numbering works

Each page gets a label made of your prefix, a zero padded number and a suffix, drawn with pdf-lib in the corner you pick. The count continues from one file to the next in the order you set, and a log lists the first and last number of each file.

Input: PDF. Output: PDF, ZIP, CSV.

How to use Bates Numbering

1. Drop one or more PDFs and put them in order.
2. Set prefix, start number and digits.
3. Pick the position and style, check the preview.
4. Download the numbered files and the log.

Tips

• Encrypted PDFs must be unlocked first with Unlock PDF.
• Large scanned PDFs are mostly images. Compress PDF shrinks them the most.
• Your original file is never modified; you always download a new copy.

Bates Numbering FAQ

Are my files uploaded?

No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.

Is it free? Are there limits or watermarks?

Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.

Does it work offline?

Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

Related tools

• Add Page Numbers: Stamp page numbers with position, format and font controls.
• Header & Footer: Add running headers and footers with dates, titles and page tokens.
• Merge PDF: Combine multiple PDFs into one ordered document with drag-and-drop sorting.
• Split PDF: Split by ranges, every N pages, or extract each page into a ZIP.