PDF Page Numbers
Add page numbers to a PDF. Pick position, format (1 / Page 1 / 1 of N), starting number, font size, color, and skip first page. Browser-only.
Drop a PDF here or click to browse
Add page numbers in any of six positions
What is the PDF Page Numbers?
A PDF page numbering tool stamps consecutive numbers onto each page in the position and format you pick. Common formats: 1, Page 1, or 1 of N. Useful for binding scanned reports, adding navigation to a long contract, or matching numbered references across separate documents. The numbers are real PDF text, not flattened images.
How to use the PDF Page Numbers
- 1
Drop in a PDF
Drag a PDF onto the upload area, or click to browse. The first page renders so you can see where the number will land.
- 2
Pick position and format
Six positions: top-left, top-center, top-right, bottom-left, bottom-center, bottom-right. Four formats: 1, Page 1, 1 of N, Page 1 of N. Page 1 of N is the most readable; bare 1 is the lightest.
- 3
Tune the look
Starting number (default 1, useful when chapter 2 starts at 47), skip first page (covers and title pages usually go unnumbered), font size, color, and margin from the page edge.
- 4
Save the numbered PDF
Click Apply & Download. @cantoo/pdf-lib writes the numbers using Helvetica at your chosen size. Existing content is untouched and stays searchable.
Frequently Asked Questions
Can I start numbering from a number other than 1?
Yes. Set Start number to whatever value you need (e.g. 47 if this PDF is chapter 2 of a longer book and chapter 1 ended at page 46). The numbering increments by one per page regardless of the starting value.
Can I skip the cover page?
Yes. Toggle Skip first page and the cover (or title page) is left blank while page 2 onward gets the numbers. The starting number applies to the first numbered page, so with Start = 1 and skip on, page 2 of the PDF is labeled 1.
What font and size are used?
Helvetica (the standard PDF font, no extra embed needed) at the size you choose, defaulting to 12pt. Color is configurable; the default is medium gray so the number reads without competing with body text. The position respects the margin slider so numbers don't crowd the edge.
What if the PDF already has page numbers in it?
The tool stamps new numbers on top of whatever is already on the page — it can't detect existing numbers and replace them. If your source already has, say, "1, 2, 3" centered at the bottom, picking bottom-center for the new numbers will overlap them. Switch to a corner position (top-right is a common pick) or increase the margin so the new number sits clear of the existing one.