About Add Page Numbers to PDF
This tool stamps a page number onto every page of a PDF, using whichever position and text format you choose — a plain number, or something like 'Page 3 of 12'. It works entirely in your browser: the file is read, numbered and rebuilt on your own device, and is never uploaded anywhere, which matters as much for a signed contract as it does for a school report.
Common uses
Preparing a report or thesis for printing
Add consistent page numbers to a long document before printing or submitting it, without opening a full desktop PDF editor.
Numbering a scanned document
Add page references to a scanned document that had none to begin with, making it easier to cite a specific page later.
Starting numbering after a cover page
Set the starting number so a cover page or title page doesn't count as page 1, matching how printed books and reports are conventionally numbered.
How to get your result
- 1
Upload the PDF you want to number.
- 2
Choose where the number should appear on the page.
- 3
Set the text format, using {n} for the page number and {total} for the page count.
- 4
Optionally change the starting number and font size.
- 5
Download the numbered PDF.
How the number is placed on each page
The tool measures the exact pixel width of the formatted label at the chosen font size, then positions it so it's genuinely left-aligned, right-aligned or centred — rather than approximating the position, which would drift for labels of different lengths, such as 'Page 1 of 12' next to the wider 'Page 10 of 12'.
Tips
- Use {n} of {total} for a format like 'Page 3 of 12' — the total is calculated automatically from the document, not entered manually.
- A smaller font size (8-10pt) keeps the number unobtrusive in a corner; going larger works better for a bold centred page marker.
- This stamps every page, including a cover page. If the cover shouldn't carry a number at all, split it off first, number the remaining pages starting at 1, then merge the cover back on with a PDF merger.