Add Page Numbers

What is Add Page Numbers to PDF?

Add Page Numbers to PDF is a free browser-based tool that stamps sequential page numbers onto every page of your document. You can choose the position (top or bottom, left, center, or right), customize the font size, and set the starting number. It is ideal for giving long documents a professional, organized appearance. The tool is powered by the pdf-lib JavaScript library and runs entirely in your browser. Your PDF is never uploaded to any external server, keeping confidential materials like legal briefs, manuscripts, and financial reports completely private.

When to Use Add Page Numbers

This tool is useful whenever your PDF lacks page numbers and you need to add them for clarity or compliance. Common scenarios include:

• Numbering a thesis, dissertation, or manuscript before submission.
• Adding pagination to scanned documents that were combined from separate sources.
• Preparing meeting agendas or board packets so attendees can reference specific pages.
• Labeling pages in a legal exhibit bundle for court filing requirements.
• Organizing multi-page handouts or training materials for distribution.

How It Works

Upload your PDF by dragging it into the drop zone or clicking the file picker. Configure the numbering options: select where the numbers should appear on the page, choose your preferred font size, and set the starting page number. Click the button to apply, and pdf-lib processes the document within your browser, drawing the page numbers directly onto each page. The updated PDF is then available for instant download. Because everything happens client-side, the tool works offline once loaded, requires no account or sign-up, adds no watermark, and is entirely free to use.