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Add Page Numbers to PDF

Runs in your browser

Number every page of a PDF, starting from whichever number you need. Applied in your browser — nothing is uploaded.

About this tool

Page numbers matter the moment a document is printed, cited or reviewed: without them, 'see the third page' is ambiguous once pages are separated. Merged documents are the usual culprit, since combining files rarely produces a continuous sequence. This tool draws a number in the footer of every page. The custom start number exists for documents that continue from another file, or that begin after unnumbered front matter.

How to use

  1. Add a PDF file.
  2. Choose the number to give the first page — useful when the document continues from another.
  3. Pick a footer position: bottom centre or bottom right.
  4. Click Add numbers and download the result.

When to use this tool

  • Numbering a document assembled from several merged files.
  • Preparing a report for print or binding.
  • Making a document easy to cite in review comments.
  • Continuing a numbering sequence across a multi-file submission.

Tips

  • If the document already has footers, check a page or two — numbers are drawn on top and can overlap.
  • Merge first, then number, so the sequence runs continuously across the whole document.
  • Numbering does not re-render pages, so quality and file size are effectively unchanged.

Limitations

  • Numbers are drawn over existing content; a document that already has footers may overlap.

FAQ

Is my document uploaded?
No. Numbers are drawn in your browser with pdf-lib. Nothing is transmitted or stored.
Can I skip numbering the cover page?
Not directly. A practical workaround is to split the cover off, number the rest, then merge them back together.
Can I use formats like 'Page 1 of 10'?
Not yet — the current version draws the bare number. Richer formats are a natural next step.