Local Windows utility
PDF Tools
The finishing pass. Stamp a watermark across a document, add page numbers, flatten a filled form so it cannot be edited further, clean up the metadata a file carries, and add or remove a password you know.
Finished PDFs land in your Organized folder.

What you can do with it
Handy things people use PDF Tools for
A few real-world jobs it makes quick — you'll find plenty more.
- Watermark a draft DRAFT before circulating it for comment.
- Number the pages of a document assembled from several sources.
- Flatten a completed form so the fields cannot be altered.
- Strip the author and software metadata before sending a file out.
What it does
Everything PDF Tools handles
A focused set of jobs, each done well — and nothing that phones home.
Watermarks
Text or image, across every page or a range, with the position and opacity you choose.
Page numbers
Add numbering in the position and format you want, including on documents merged from several sources.
Protect
Add a password so the document cannot be opened without it.
Unlock
Remove a password from a document you already have the password for, so the rest of the tools can work on it.
Flatten forms
Turn filled form fields into part of the page itself, so what you send is what the recipient sees.
Clean metadata
Review and clear the author, title and producer fields a PDF quietly carries around.
How it works
From file to finished in a few clicks
- 1
Drop the PDF in
One file or a folder — every operation here batches.
- 2
Choose the operation
Watermark, page numbers, flatten, metadata, protect or unlock, with its settings.
- 3
Apply
The result is written as a new file, on your machine, with the original untouched.
Under the hood
The engines, named plainly
The engines, named plainly — three of them, each for a reason.
- Watermarks & numbering
- pdfcpu — streams, so large documents batch cleanly
- Form flattening
- pdf-lib
- Encryption
- qpdf — the only component that touches protected files
- Output
- Platform
- Windows 10/11 (x64) — runs fully on your machine
Unlock removes a password you already know. It does not break, guess or crack anything, and it will not open a document you do not have the password for — that is a deliberate limit, not a missing feature.
The rest of the belt
More tools in the tray
Questions
PDF Tools, answered
Add PDF Tools to your tray
PDF Tools ships inside BizTray alongside the rest of the toolkit — one small download, no account, no quota.