Add page numbers to a PDF without uploading it
Number every page of your PDF, centered at the bottom.
Processed on your device — nothing is uploaded. Works offline.
How to add page numbers to a PDF without uploading it
- 1Choose one or more PDFs.
- 2Click Add page numbers. Each page gets its number centred at the bottom.
- 3Download the numbered files.
Every step runs in this tab. The site has no upload endpoint, and the page's security policy forbids the browser from contacting any other server — see how that is enforced.
When you'd use it
Court bundles and bound reports
Consistent numbering across a document assembled from many sources.
Merged documents
Files combined with Merge PDF whose original numbering no longer makes sense.
Handouts for printing
So a dropped stack can be put back in order.
Good to know
- Numbers are drawn into the page content, centred at the bottom of every page, starting at 1.
- Several files can be numbered in one run.
Don't trust us — test us
“Your files never leave your device” is a claim every PDF site makes. Here it is checkable in under a minute, three different ways:
- Watch the network.Open your browser's developer tools, switch to the Network tab, then run the tool. The only requests you will see are the site's own files — none of them carries your document — and once the app is cached there are no requests at all.
- Pull the plug. Load this page, turn off your wifi or switch on airplane mode, then use the tool. It keeps working, because there is no server involved and nowhere to upload to.
- Read the headers. The response headers for this page include a Content-Security-Policy with
connect-src 'self': the browser itself refuses to send anything to another host, whatever the code asks.
The full privacy model, including what we can't protect you from →
Guide
How to edit a PDF without uploading it
Most 'edit a PDF' jobs are one of seven things, and all seven can be done in your browser without the file leaving your machine. Which tool for which job, and the honest answer on editing the text itself.
Frequently asked questions
Can I change where the numbers go or how they look?
Not yet — numbers are centred at the bottom in a plain font, which suits most documents. If you need a specific style, tell us; it's on the list.
Does numbering start at 1?
Yes, on the first page of the file. Number after merging or deleting pages so the sequence matches the final document.
Are my files uploaded to a server?
No. All processing happens inside your browser using WebAssembly and JavaScript. Our server only serves the app itself — there is no endpoint that can receive files. You can verify this in your browser's network tab, or turn off your wifi after the page loads: everything still works.
Does it work offline?
Yes. After your first visit the whole app is cached by a service worker, so the page loads and every tool works with no connection at all. Load the page, switch on airplane mode, and carry on.
Is there a file size limit?
No hard limit — your device's memory is the ceiling. Files up to a few hundred MB work well on a typical laptop. Very large files may be slow or fail on low-memory devices; nothing is ever truncated silently.
Do I need to create an account?
No. No account, no email, no cookies. The free tools are simply free.
Which browsers work?
Current Chrome, Edge, Firefox and Safari, on desktop and on phones. Phones have less memory, so very large files are better handled on a laptop.