PDF Tools for Law Firms

Bates numbering, metadata sanitising and redaction for legal documents, processed entirely on your device. Confidential and privileged material never leaves the machine.

PDF Vault gives law firms Bates numbering, metadata sanitising, redaction support and the full PDF toolkit, with every operation running on your own machine so privileged and protected material is never transmitted to a third party.

Legal document work has a structural problem with cloud tooling. Discovery material is confidential by definition, frequently privileged, and often governed by a protective order that specifies exactly who may handle it. A free web converter is not on that list.

The exposure is not hypothetical. Uploading a production set to an outside service means transmitting it to a party you have no engagement letter with, storing it on infrastructure nobody at your firm has assessed, and leaving it there for a retention window you do not control. If opposing counsel asks how the production was prepared, that is not a comfortable answer.

PDF Vault removes the question entirely. Documents are read into your browser's memory, processed by WebAssembly on your own processor, and written back to your disk. There is no upload endpoint, so there is nothing to disclose, nothing to log, and nothing for us to hold.

Bates numbering that matches how firms actually work

Set a matter or party prefix, a starting number, and a zero-padding width, and the tool produces consistent identifiers such as ABC000001 through ABC001250. Stamps are placed clear of page content, conventionally bottom-right.

For a production spanning several files, merge the set first so the sequence runs continuously — restarting numbering per document is the single most common production error, and it defeats the purpose of Bates numbering.

  • Custom prefixes. Matter codes and party abbreviations formatted the way your firm does it.
  • Zero-padded sequences. Consistent width so identifiers sort correctly in a folder, a database, and a spreadsheet.
  • Position control. Place the stamp without covering substantive page content.
  • Continuous across a set. Merge first, stamp once, and the sequence never restarts mid-production.

Sanitise before you disclose

Every PDF carries metadata beyond its visible pages: author, organisation, the producing application, and creation and modification timestamps. That layer has revealed the true author of documents, exposed that a filing was adapted from another client's version, and given away internal timelines through modification dates.

Run the Sanitize tool over a document before it goes out and that layer is stripped. Doing this locally is the only version that makes sense — uploading a document to have its identifying data removed rather defeats the exercise.

A practical production workflow

Merge the set into a single file. Sanitise to strip metadata. Apply Bates numbering. Spot-check the first page, the last page, and a handful in between. Every step runs on the machine the documents started on, so the chain of custody never leaves your control.

Because PDF Vault installs as a Progressive Web App and works with no network connection, this workflow also runs on an air-gapped machine — which some firms require for particularly sensitive matters.

The tools this team uses most

Frequently asked questions

Is this suitable for material under a protective order?

That is the design goal. Because processing happens in your browser and no upload occurs, the document is not transmitted to or stored by any third party, which is normally the specific concern a protective order addresses. Confirm against the wording of your particular order — we are describing what the software does, not giving legal advice.

Can I verify that nothing is uploaded?

Yes, and you should. Open your browser's developer tools, switch to the Network tab, and run any operation. No request carries your document. That is a verifiable technical fact rather than a policy promise.

Does PDF Vault support true redaction?

Use Organize to delete pages entirely, and Sanitize to strip hidden metadata. For redacting text within a page, cover the content and flatten the result to an image before disclosure, then verify the exported file — text hidden under a black box in a vector PDF remains selectable, which has embarrassed a great many organisations.

Can several people at the firm use it?

Yes. There is nothing to install and no licence server — each person opens it in their browser. Pro is billed per account and removes the daily operation limit.

What happens if a file is very large?

The ceiling is your machine's available memory rather than a server-imposed limit. Multi-hundred-megabyte productions are workable on a typical modern laptop; very large scan archives are more comfortable split into batches.

Further reading