How to Add Bates Numbers to PDFs Free — Legal Document Numbering

What Is Bates Numbering?

Bates numbering is a sequential page-numbering system used in legal and business document management. Each page in a set of documents receives a unique identifier — typically a prefix followed by a sequential number (e.g., ABC-000001, ABC-000002). It was invented by the Bates Manufacturing Company for their automatic numbering machine and has been the standard for legal document production for over a century.

How to Add Bates Numbers to PDFs

1. Open the Bates Numbering tool
2. Upload one or more PDF files
3. Set the prefix (e.g., "DEF-" or "EXHIBIT-")
4. Choose starting number, digit padding, and position on the page
5. Download the Bates-numbered PDF

Your documents never leave your browser. For confidential legal documents, this is critical — no server processing means no data exposure risk.

When Bates Numbering Is Required

• Legal discovery — opposing counsel references specific pages by Bates number during depositions and trial
• Court filings — many courts require Bates-numbered exhibit pages
• Document production — producing thousands of pages requires unique identifiers for every page
• Insurance claims — claims adjusters reference supporting documents by Bates number
• Medical records — organizing large patient file productions for litigation

Best Practices

• Use enough digit padding — if you might produce 100,000 pages, use 6 digits (000001). Under-padding causes sorting issues later.
• Consistent prefix per party — typically the producing party's initials or an abbreviation (DEF-, PL-, SMITH-)
• Don't restart numbering — Bates numbers should be unique across the entire production, not per document
• Bottom-right corner — the most common position, though courts may specify otherwise