PDF Page Numbering
Stamp page numbers onto PDFs with position, "Page X of Y" formats, font size, and start offset via pdf-lib. Private, free, and processed fully in your browser.
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What is PDF Page Numbering?
The PDF Page Number Stamper adds page numbers to any PDF using pdf-lib entirely in your browser. Choose one of six margin positions, three number formats including the classic Page X of Y, adjust the font size, and set a start offset for unnumbered cover pages - with no upload at any step.
Key Benefits
- Clean page numbers without desktop PDF software
- Start-offset support for unnumbered covers and front matter
- Six positions and three formats for any document style
- Private by design - files never leave your browser
Common Use Cases
- •Numbering reports, theses, and handouts before printing
- •Adding numbers to merged PDFs from scanners or exports
- •Skipping cover pages with the start-offset option
- •Standardizing page labels across a document set
- •Quick fixes when a source document lacks pagination
Add Page Numbers to a PDF
- Choose your PDF: Pick a file from your device, or load the sample PDF to try the tool first. The file never leaves your browser.
- Pick position and format: Choose one of six margin positions and a style such as plain numbers, X / Y, or the classic Page X of Y.
- Set size and start offset: Adjust the font size and, for documents with unnumbered cover pages, set the numbering to start at 2 or later.
- Stamp and download: Click Add page numbers, then download the finished PDF - processed locally with pdf-lib, nothing uploaded.
Key Features
- Six stamp positions across the top and bottom margins
- Three formats: plain numbers, X / Y, and Page X of Y
- Adjustable font size and start offset for cover pages
- Sample PDF generator so you can try before using real files
- Processed with pdf-lib entirely in your browser
- No upload, no size-based waiting, no watermarks