What is this tool?
Add Page Numbers loops through page sizes and dynamically overlays styled text runs in the document coordinates using pdf-lib.
How to use it
1. Select and upload your PDF file.
2. Choose layout settings (number format, position alignments, fonts, margins, and ranges).
3. Click "Add Page Numbers".
4. Download the updated, numbered PDF document.
Pro tips
- Standard footers use a 20-point margin from page boundaries. Increase this padding if the text overlaps with existing page contents.
- Use contrasting colors (e.g. black or dark blue) for visibility.