Insert page numbers into a PDF, choose the position, format and starting number, free and fully private in your browser.
Drag & drop your PDF here
or
Single PDF file · Processed in your browser
Live preview, page 1 · the number moves as you change the options
Add Page Numbers stamps a page number onto every page of your PDF. Pick where the number appears, choose a simple format like plain numbers, "Page 1" or "1 of N", and set which number to start from. Everything runs locally in your browser using pdf-lib, so your document is never uploaded and the rest of its content stays exactly as it was.
Page numbers make a PDF far easier to read, cite and print — whether you are handing in a report, sharing a contract, or assembling a booklet from several files. Add Page Numbers stamps a clean number onto every page in one pass. Choose one of six positions (bottom or top, in the left, center or right), pick a format such as plain numbers, "Page 1" or "1 of N", and set the number the sequence starts from so it lines up with a cover page or an existing section.
The numbers are drawn on with the open-source pdf-lib library, so only the new text is added — the existing content of every page is left exactly as it was, with no re-compression or quality loss. Everything happens inside your browser, so your document is never uploaded and nothing is stored on a server. It works on Windows, macOS, Linux, Android and iOS in any modern browser, so you can number a PDF on your laptop or your phone without installing an app or creating an account. Numbering a document you built from several files? Combine them first with our Merge PDF tool.
Reviewed by the ToolBrainy Team · Files are processed 100% in your browser · Last updated July 2026
Drag & drop or choose a single PDF file.
Set position, format and start number.
Stamp the numbers and save your PDF.
Numbering happens locally, nothing uploaded.
Six positions and three number formats.
Only the numbers are added, nothing else changes.
No signup, no limits and no watermarks, ever.
Number long reports for easy reference.
Add page numbers before signing.
Paginate essays and theses.
Keep printed handouts in order.
Meet pagination requirements.
Add numbers to e-books and guides.
You choose, six positions are available: bottom or top, in the left, center or right of the page.
Yes. Set any starting number and the pages are numbered upward from there.
No. Only the page numbers are stamped on, the existing content of every page is left untouched.
Yes. Everything runs in your browser using pdf-lib, your file is never uploaded to a server.
No. Add Page Numbers runs entirely in your browser, so there is nothing to download or install — just open the page and stamp your numbers.
You can use plain numbers, the "Page 1" style, or "1 of N" which also shows the total page count.
No. Only the page-number text is stamped on; the rest of every page is untouched with no re-compression, so quality is fully preserved.
Yes. The tool works in any modern mobile browser, so you can add page numbers straight from your phone.