Add Page Numbers
Stamp sequential page numbers onto every page of your PDF with custom positioning, starting digits, and font sizing. Runs 100% in your browser using pdf-lib.
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How to Use
- 1Select or drop your PDF document into the upload container.
- 2Choose a position preset: Bottom Center, Bottom Left, Bottom Right, or Top Center.
- 3Enter your starting page number (default 1) and font size in points (default 12 pt).
- 4Click Add Page Numbers to stamp numbers onto each page canvas.
- 5Click Download PDF to save your numbered document to your computer or phone.
Frequently Asked Questions
What font does the page numbering tool use?
The tool embeds standard Helvetica typography directly into the PDF structure, ensuring clean rendering across all PDF viewers without font substitution.
Can I start numbering at a page digit other than 1?
Yes. Adjust the 'Start Number' field to any integer, which is useful when numbering appendices or later document volumes.
Where are the page numbers positioned on the sheet?
You can align page numbers at the bottom center (centered horizontally, 30 pt from bottom), bottom left (40 pt margin), bottom right (40 pt margin), or top center (30 pt from top).
Are my confidential files uploaded to any external server?
No. The document is decoded, numbered, and recompiled entirely in your browser memory using pdf-lib with zero network requests.