Add page numbers to a PDF without uploading it
Number the pages of a PDF — saved permanently into the document — without uploading it anywhere. Free, unlimited, and entirely in your browser.
No sign-up. No upload. Nothing to install.
How to add page numbers to a PDF
- Open your PDF. Drop the document onto PDFLight. Nothing is uploaded.
- Open the Tools menu. In the toolbar, open Tools and choose the stamp option.
- Turn on page numbers. Enable page numbering. Each page gets a “n / total” label at the bottom.
- Apply and save. Apply, then Save. The numbers are written into the file itself.
Number pages before you send or print
Page numbers make a document easy to reference — “see page 7” only works if the pages are numbered — and they help a reader spot a missing sheet in a printout. It is the natural finishing touch before sending a report or a contract.
There is a difference between numbers your reader can see and numbers your reader can rely on. A PDF reader shows a page counter in its own interface, but that counter is a property of the software, not of the document: it disappears when the file is printed, and it disagrees with the page numbers already printed on a scanned document. Stamping the numbers into the content stream makes them part of the page, so they survive printing, emailing and every reader.
This matters most for documents that will be referenced rather than merely read — court bundles, tender responses, technical annexes, anything with a table of contents. It is also why numbering is normally the last step: adding, removing or reordering pages afterwards leaves the stamped numbers wrong, and the fix is to undo and re-stamp rather than to patch.
The stamping is done in your browser, so a document assembled from confidential pieces does not have to be uploaded for its final cosmetic step.
Frequently asked questions
Where do the page numbers appear?
Centred at the bottom of each page, as a “current / total” label.
Are the numbers saved into the file?
Yes. PDFLight rebuilds the document with them, so they stay wherever the file is opened.
Is my document uploaded?
No. The numbering is applied in your browser. Nothing is sent to a server.
Can I add a watermark at the same time?
Yes. The same tool can stamp a diagonal watermark alongside the page numbers.
Can I undo it?
Yes, with Ctrl+Z before saving.
Go deeper
Page numbers are drawn into each page rather than stored as a document property. On the mechanics, and on what to do before this final step: