Add Page Numbers to PDF

Stamp page numbers onto every page.

Drop a PDF here, or click to browse

Processed entirely in your browser — nothing is uploaded

About the Add Page Numbers to PDF

Add clean, professional page numbers to any PDF. The Page Numbers tool stamps each page in the browser with pdf-lib — choose the position, number format, starting value and font size, then download the result. Your file is processed locally and never uploaded.

How to use it

  1. 1Drop in the PDF you want to number.
  2. 2Pick a position (any of the four corners, or top/bottom centre).
  3. 3Choose a format like "1", "1 / N", "Page 1" or "Page 1 of N".
  4. 4Set the starting number and font size, then click Add page numbers to download.

Formats and starting numbers

The "{total}" formats automatically fill in the document's page count, so "Page 1 of N" becomes "Page 1 of 24" without any manual counting. Setting a custom start value is useful when your PDF is one section of a larger document — you can begin at 12, for example, so the numbering continues seamlessly. Numbers are drawn as real text in a standard Helvetica font, keeping the file crisp at any zoom level.

Common uses

  • Numbering a thesis, report or contract before printing or submission.
  • Continuing page numbers across a document that's split into multiple PDFs.
  • Adding reference numbers to a handout so an audience can follow along.

Frequently asked questions

Can I start numbering from a page other than 1?
Yes. Set any starting value — including 0 — and the numbers count up from there across the document.
Where can the numbers be placed?
In any of the four corners, or centred at the top or bottom of the page.
Is the PDF uploaded to add numbers?
No. The page numbers are stamped in your browser and the file never leaves your device.