OomTools

Add Page Numbers to PDF

Add page numbers to a document and control their position, the starting number and the format — plain, 'Page N', or 'N / total'. It runs locally with pdf-lib and uploads nothing, which suits reports, manuscripts and handouts.

  • 100% free
  • Private & safe
  • Runs in your browser

Your files are processed securely in your browser and are not uploaded to our servers.

Why use Add Page Numbers to PDF?

Add Page Numbers to PDF works on your documents locally, so you get the result in seconds with no watermarks, no sign-up and no files leaving your device.

  • 100% private: files are processed in your browser and never uploaded.
  • Completely free, with no account, no watermarks and no usage limits.
  • Handles PDF (.pdf); Formats: 1,2,3 · 1 / N · Page 1.
  • Add a PDF file.
  • Works on any device — desktop, tablet and phone — and is fully keyboard accessible.

How to use Add Page Numbers to PDF

  1. Add a PDF file.
  2. Choose the position (corner or centre, top or bottom).
  3. Pick a starting number and a format such as '1 / N' or 'Page 1'.
  4. Download the numbered PDF.

Examples

  • Numbering a merged report before printing.
  • Adding 'Page N of total' to a manuscript.

Supported formats & limits

  • PDF (.pdf)
  • Formats: 1,2,3 · 1 / N · Page 1

Limitations

  • Numbers are drawn over the existing page content near the chosen edge.
  • Very dense page footers may overlap existing text.
  • Encrypted PDFs must be unlocked first.

Frequently asked questions

Can I start numbering from a specific number?

Yes. Set the 'Start at' value, which is useful when a document has a cover page.

Where are the numbers placed?

In the corner or centre of the top or bottom margin, as you choose.

Is my PDF uploaded?

No — numbering happens locally in your browser.

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