Litigation document prep

What Is Bates Numbering? A Guide to Automating Bates Stamping

Bates numbering is the standard way legal teams label pages and documents so every record can be identified, cited, and retrieved during a case. If you are handling discovery, a production, or a motion filing, you have probably seen a Bates stamp like SMITH_000001 on the bottom of a page.

Unique ID

Every page gets a sequential Bates number that never repeats within a matter.

Searchable

Depositions, motions, and review notes can cite a single page instantly.

Defensible

Consistent numbering creates a clear record of what was produced and when.

Why Bates numbering matters in litigation

Litigation runs on references. Attorneys cite documents in pleadings, depositions, and trial briefs. Judges and opposing counsel expect to know exactly which page is being discussed. A missing or inconsistent page number creates delays, disputes, and sometimes sanctions.

Bates numbering solves this by assigning a unique, sequential identifier to every page in a document set. The prefix usually identifies the matter or production, and the number increments across every page. That is why terms like Bates numbering, Bates stamping, and Bates label are used interchangeably in legal practice.

The problem with manual Bates stamping

Many firms still Bates-stamp PDFs one at a time in Adobe Acrobat or similar tools. For a few dozen pages it is manageable. For a few thousand, it becomes a bottleneck. The manual approach has common problems:

Staff must open each file, choose the stamp location, and apply it individually.
It is easy to skip a page, duplicate a number, or use the wrong prefix.
Native files like Word and Excel cannot be stamped directly, so they need a separate slip-sheet process.
There is no shared log tying the Bates number back to the source file and production.
Re-stamping after a mistake means starting over or hunting for the error.

How software automates Bates numbering

Automated Bates numbering lets you define a prefix, starting number, and stamp position once, then apply those rules across the entire document set. The software opens each file, renders the pages, adds the stamp, and writes the labeled output back to a storage location. A log is generated at the same time so every Bates number is linked to its original source.

Automation also handles the edge cases manual tools miss. For example, native files that cannot be stamped directly are often handled with a slip sheet, a placeholder PDF that contains the Bates number and file metadata. Modern litigation prep platforms do both in one workflow: stamp the PDFs and create slip sheets for the native files.

How LitPrep automates Bates stamping

LitPrep is built to move legal teams beyond manual Bates stamping. Here is how it works in practice:

Upload the entire production

Add PDFs, Word files, Excel files, PowerPoint decks, images, and emails to a matter in one batch.

Set Bates rules once

Choose the prefix, starting number, increment, and stamp position. Apply them to every document in the matter.

Render and stamp

LitPrep converts native files to a stampable format, applies the Bates label, and stores the labeled output.

Generate a document log

Each file is tied to its original source, Bates range, custodian, and production details in a single exportable log.

Manual Adobe vs. LitPrep

Step

Manual Adobe

LitPrep

Upload files

One at a time or folder import

Drag-and-drop batch upload

Set Bates rules

Per-file or per-batch setup

Matter-level rules applied everywhere

Native files

Export to PDF first, then stamp

Automatic slip sheets or rendering

Document log

Created manually in a spreadsheet

Generated automatically with metadata

Re-stamping

Manual rework

Re-run the Bates job with updated rules

Key terms to know

Bates stamp: The visible identifier added to a page, usually at the bottom right or center.
Bates prefix: A short label, often the matter name or production ID, placed before the number.
Bates range: The first and last Bates numbers assigned to a document or production.
Slip sheet: A placeholder PDF used for native files that cannot be stamped directly.
Document log: A spreadsheet or database listing each file, its Bates range, source, custodian, and production notes.

Move faster with automated Bates numbering

LitPrep helps litigation teams intake, label, and prepare large document sets in a fraction of the time. Schedule a walkthrough to see how automated Bates stamping works for your matters.

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Frequently asked questions

What is Bates numbering used for?

It is used to give every page in a document production a unique identifier so attorneys, judges, and opposing counsel can cite and locate pages quickly.

Can Bates numbering be automated?

Yes. Litigation prep platforms like LitPrep can apply Bates numbers across thousands of pages automatically, including native files that need slip sheets.

Is Bates stamping the same as Bates numbering?

Yes. The terms are often used interchangeably. Bates stamping refers to the physical or digital imprint of the number on each page.

Does LitPrep support custom Bates prefixes?

Yes. You can set the prefix, starting number, increment, and stamp position for each matter.