How to add page numbers to a PDF — in 3 steps
SlimIO's page numbering tool stamps a clean page number on every page of your document. Everything runs in your browser, so your file stays private and there is nothing to install.
- 1. Add your PDF. Drop in one file, or click to browse.
- 2. Choose a style. Pick the position (top or bottom, left, center or right), the format and the font size.
- 3. Download. Click Add page numbers and save the numbered PDF to your device.
Skip the cover page
Reports and theses often leave the cover unnumbered. Set Skip first pages to 1 and the numbering starts on page two. Need a different order first? Use Organize PDF, then number the result. To shrink the file afterward, run the PDF compressor.
Add page numbers — FAQ
How do I add page numbers to a PDF for free?
Open SlimIO's page numbering tool, choose a PDF, pick a position and format, and click Add page numbers. The numbered PDF downloads right away. It runs in your browser, so there is nothing to install and no account needed.
Can I start numbering from a different page?
Yes. Set "Skip first pages" to leave a cover page unnumbered, and set "Start at" to choose the first number shown.
Can I use the "Page 1 of 10" format?
Yes. Choose between 1, Page 1, 1 / 10 and Page 1 of 10.
Is it safe to number a PDF online?
Yes. SlimIO adds the numbers locally in your browser, so your PDF never leaves your device and is not uploaded to a server.
Does it work on rotated or landscape pages?
Yes. Numbers are placed as you see the page, so landscape and rotated pages get numbers in the right spot and the right way up.