Add Page Numbers to PDF
A PDF pagination utility is a document editing tool that stamps visual page numbers onto each page of a PDF. Using font embedding, it draws page number strings at designated geometric alignments on the page coordinates.
Add clean Helvetica page numbers to your PDF document pages. Fast, secure, and completed entirely in-browser.
Quick Answer
Paginate a PDF document. Select page number positioning and start number to stamp page numbers locally.
Drag and drop your files here, or browse
Supports .PDF files up to 20MB
Examples
Standard Bottom Center
Add page numbers centered at the bottom, starting at 1
Custom Start Number
Add page numbers at bottom-right, starting at 10
How it works
When you select a PDF, the file is read and loaded into a pdf-lib document context.
The script embeds the standard Helvetica font into the PDF structure, ensuring it renders identically on any device without relying on system fonts.
For each page, the script retrieves its width and height, calculates the text boundaries based on the current page number string, and computes coordinate offsets (x, y) based on your alignment selection.
Using page.drawText(), the numbers are stamped on top of each page. The output bytes are saved and made available for download.
Private Processing. No servers are involved in paginating your document. The processing runs entirely inside your browser's local sandbox.
Related Calculators
More tools from PDF Tools