Number PDF Pages
Quickly add sequential page numbers to your PDF. Pick a corner or bottom centre placement, choose the starting number and font size, then download the numbered PDF instantly. All processing runs in your browser.
Drop a PDF here or click to browse
How it works
This tool uses pdf-lib, a pure JavaScript PDF library. It loads your PDF in memory, uses the built-in Helvetica font to draw a page number on each page at the position you choose, and downloads the result. All without leaving your browser tab.
Processing runs in your browser
All processing happens inside your browser. pdf-lib modifies the document structure entirely in memory. Our servers are not involved at any point.
Related operations
For adding text or image overlays to pages, try PDF watermark. To join several numbered files into one, use merge PDF. For straightening pages before numbering, see rotate PDF.
Frequently asked questions
- Which position should I choose for page numbers?
- Bottom centre is the most common convention for printed documents. Bottom right is common for reports. Top right is often used in academic papers and legal documents.
- Can I control the font size of the page numbers?
- Yes. Choose Small (10pt), Medium (12pt), or Large (14pt) from the size options.
- Can I choose the colour of the page numbers?
- Yes. Choose Black for full contrast or Gray for a more subtle appearance.
- Will the page numbers be searchable or selectable?
- Yes. The numbers are drawn as real text in the PDF using the Helvetica font, so they remain selectable and searchable.
- Is this tool free?
- Yes, completely free. No account, no sign-up, and all processing runs in your browser.