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.
Because the numbers are rebuilt into the file, they survive being emailed or printed, on any machine. And Every other free PDF tool works the same way: you upload your file, a server you know nothing about processes it, and you trust it to delete the copy afterwards. PDFLight does not. The entire editor is JavaScript running on your own machine, so your document is read into your browser's memory and never travels anywhere. There is no upload endpoint — not as a policy, but as a fact of how the application is built.
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.