Bates Numbering for Legal Discovery — FRCP and CPC Guide

The short answer

Bates numbering is the sequential unique identifier stamped on every page of a document production set during litigation discovery. The convention gives each page a stable address — typically a party-identifying prefix plus a zero-padded number, like ABC000001 — that everyone in the case can use to reference that page without ambiguity for the life of the matter. In US federal practice, Bates numbering is the standard implementation of the labeling requirement under Federal Rules of Civil Procedure Rule 34. In Indian civil practice, it is the de facto standard for commercial-court productions under CPC Order XI as amended by the Commercial Courts Act 2015.

The pdfmavericks.com bates-numbering tool applies Bates labels to every page of a PDF in your browser using a WebAssembly stamping module — no upload, no third-party retention of the underlying document. For documents that cannot leave the firm's network for privilege or work-product reasons, that posture is the difference between a usable workflow and one that requires a desktop-installed alternative.

FRCP Rule 34 — US document production

Rule 34 of the US Federal Rules of Civil Procedure governs production of documents, electronically stored information, and tangible things during discovery. The current text is on Cornell's Legal Information Institute at law.cornell.edu/rules/frcp/rule_34. Two parts of the rule drive Bates-stamping practice:

Rule 34(b)(2)(E)(i) says a party producing documents must produce them as they are kept in the usual course of business or organize and label them to correspond to the categories in the request. The labeling option is what most producing parties choose for large productions, and Bates numbering is the standard labeling system.

Rule 34(b)(2)(E)(ii) says electronically stored information must be produced in the form requested, or in a reasonably usable form. In modern practice this usually means searchable PDFs with Bates-stamped pages and a load file that maps Bates ranges to document boundaries, custodians, and metadata for ingestion into the receiving party's eDiscovery review platform (Relativity, Everlaw, Logikcull, and similar).

The Sedona Conference Principles for Electronic Document Production — see thesedonaconference.org — reinforce the same expectation: every produced page should have a unique stable identifier, and Bates numbering is the universally recognized convention for satisfying that expectation.

CPC Order XI — India discovery and inspection

India's Code of Civil Procedure, 1908 (CPC) governs civil litigation in Indian courts. Order XI deals with discovery and inspection — the official text is on the India Code site at indiacode.nic.in. Two rules are most relevant:

• Order XI Rule 12 — Discovery of documents. Each party may apply to the court for an order requiring the other party to disclose on affidavit the documents in their possession or power relating to the matter.
• Order XI Rule 14 — Inspection of documents. A party may apply for inspection of documents referred to in pleadings or affidavits.

The Commercial Courts Act, 2015 substantially amended discovery for commercial disputes (broadly: disputes valued over ₹3 lakh involving commercial transactions). The amended regime introduces a Schedule that prescribes inspection windows, requires electronic copies of documents in searchable form, and imposes costs consequences for non-compliance. The Act text and rules are on the Ministry of Law and Justice site at legislative.gov.in.

Indian commercial-court practitioners — particularly under the Delhi High Court Commercial Division and the Bombay High Court Commercial Division — have adopted Bates-style numbering as the working standard for managing large production sets, even though the CPC does not literally mandate it. The convention is taught in NLU and Government Law College litigation electives and is referenced in published commercial-court orders that direct parties to use sequentially numbered documents for inspection.

Prefix and numbering conventions

The format that has stabilized across US federal practice and is increasingly common in Indian commercial-court productions:

• Prefix: 3 to 5 uppercase characters that identify the producing party. For corporate parties the prefix is often a stock ticker or short form (ABC for ABC Corporation). For law firm productions where the firm is the producer of record, an abbreviation of the firm name is used. The prefix should be unique across the case.
• Separator: Optional dash or underscore between prefix and number, though many practitioners run them together (ABC000001 vs. ABC-000001). Either is acceptable as long as the convention is consistent across the production.
• Number: Zero-padded to 6, 7, or 8 digits depending on the expected production size. A 6-digit pad accommodates up to 999,999 pages per prefix; an 8-digit pad accommodates 99,999,999. For most matters 6 or 7 digits is sufficient.
• Placement: Bottom-right corner of the page footer is the most common location. Bottom-center and bottom-left are also acceptable; the requirement is consistency across the production set.
• Font and size: A small sans-serif font (Arial or Helvetica 8 to 10 point) is conventional, contrasting with the document body but not large enough to obscure the content. Black ink on a white footer area.

For supplemental productions, a separate prefix (ABC-SUPP) avoids ambiguity. For multi-volume productions, prefix-volume conventions (ABC-VOL01) are sometimes used though running Bates ranges that continue across volumes are cleaner.

Browser-local stamping workflow

The pdfmavericks.com bates-numbering tool runs the entire stamping operation inside a browser tab. The workflow:

1. Assemble the production set in the order it will be produced. Files should be named with leading zero-padded sequence (001_contract.pdf, 002_email.pdf, etc.) so the load order matches the intended Bates sequence.
2. For each document, open pdfmavericks.com/bates-numbering in a browser tab.
3. Drop the PDF, set the prefix (e.g. ABC), the starting number (continuing from the previous document's last Bates number), and the digit padding.
4. Choose footer placement (right, center, or left) and any confidentiality designation if applicable (CONFIDENTIAL, HIGHLY CONFIDENTIAL, ATTORNEYS EYES ONLY).
5. Click stamp. The tool applies the Bates label to every page in the browser tab and offers the stamped PDF for download.
6. Record the Bates range for this document in a production index (the load file that accompanies the production).
7. Repeat for each document, advancing the starting number based on the previous document's page count.

The full operation happens locally. The unstamped document never reaches a pdfmavericks.com server because there is no pdfmavericks.com server in the stamping path — the WebAssembly module that does the stamping is downloaded once when the page loads and runs entirely in the tab afterward. This matters for privileged or work-product documents that the firm's information governance policy prohibits from leaving the firm's network during processing.

For high-volume productions (over a few thousand pages), the manual document-by- document workflow becomes tedious. A desktop tool with a load file driver — or a firm-internal script that wraps qpdf — is the appropriate scale. The browser tool is calibrated for the typical motion-practice exhibit set or small-to-medium production that runs from dozens to a few thousand pages.

From Bates to deposition exhibits

Bates numbering does not end the document-management workflow — it starts it. The same Bates-stamped documents become deposition exhibits, motion exhibits, and trial exhibits as the matter progresses. Three observations from practice:

• Deposition exhibits get a second identifier. When a Bates-stamped document is marked at a deposition, it gets a deposition exhibit number on top of the Bates number — Plaintiff's Exhibit 1 or Smith Deposition Exhibit 3. The second identifier sits in a different region of the page, usually on a separate exhibit cover sheet, leaving the Bates number untouched.
• Trial exhibits get a third identifier. By trial, the same document may carry a Bates number, a deposition exhibit number from prior testimony, and a trial exhibit number assigned by the court. All three coexist and are referenced separately in the trial record.
• Redactions get applied after Bates. Privileged or protected content within a produced document is redacted after the document is Bates- stamped, so the Bates number stays visible while the redacted region is blacked out. The redact-pdf tool handles this with irreversible flattened redactions in the browser.

Clawback under FRCP 26(b)(5)(B)

FRCP Rule 26(b)(5)(B) gives the producing party a remedy when a privileged document is inadvertently included in a production. The rule's text is at law.cornell.edu/rules/frcp/rule_26. The mechanic: the producing party serves a notice on opposing counsel identifying the privileged document and the basis for privilege; opposing counsel must promptly return, sequester, or destroy the document and any copies, and must not use it pending court resolution.

Stable Bates numbering is what makes the clawback workable. The notice typically reads "Pursuant to Rule 26(b)(5)(B), please return or destroy ABC000247 through ABC000252, which were inadvertently produced and contain attorney-client privileged communications." Without stable Bates ranges, the notice has to identify documents by content description, which is both ambiguous and risks further disclosure of the privileged content.

The browser-local stamping tool produces a single-pass deterministic numbering. If a correction is later needed — a document was Bates-stamped under the wrong prefix, a page was missing during the original stamping — the standard fix is a supplemental production with a distinct prefix (ABC-SUPP) rather than re-stamping the original production, which would invalidate every prior reference.

For the foundational Bates numbering tool guide (pricing, formats, file size limits), see our Bates numbering tool walkthrough. For the redaction layer that goes with confidentiality designations, see the redact-pdf tool. For the broader argument about keeping privileged documents off third-party servers, see why server-side PDF tools leak data.