How to use?
Add page numbers to any PDF with clear placement controls — choose a grid position for single-page layouts or facing spreads with outer-margin alternation, then pick formats like plain numbers or Page N of M.
Processing runs in your browser with pdf-lib: upload the file, set margin and typography, and download a numbered copy without sending the PDF through a separate numbering service.
- Open Add page numbers from the toolkit and upload your PDF.
- Choose Single page or Facing pages (book-style outer left/right alternation).
- Tap the position grid to pick the vertical band and, in single mode, the horizontal alignment.
- Choose margin preset, which pages to number, and the first displayed number.
- Pick a text format and adjust font size, color, and bold if needed.
- Click Add page numbers and save the downloaded PDF.
Why use Add page numbers?
- Readable navigationGive reviewers consistent folios instead of guessing page order from thumbnails.
- Spread-aware optionFacing mode mirrors common print layouts with outer-edge numbering.
- Flexible rangesNumber the whole document or only the ranges you specify.
- Local-first workflowStamp numbers locally when you want drafts to stay in the browser.
Key features
Grid placement
Nine-cell layout for corners, edges, and center positions.
Format presets
Plain numbers, Page N, or Page N of M across the file.
Helvetica typography
Standard fonts for reliable rendering on every viewer.