Is my PDF uploaded to a server?

No. Page numbers are stamped using pdf-lib running in your browser.

Can I start numbering from a number other than 1?

Yes. Set the starting number in the "Start at" field, useful for documents that continue from a previous part.

What positions are available for the page number?

Bottom centre, bottom right, and top right are available. These positions work well for most document types.

Can I choose the font and size?

Yes. Select from Small, Medium, and Large size options. The font is Helvetica for clean, universally supported rendering.

Add Page Numbers to PDF

Add page numbers to PDF is a PDF tool that stamps sequential numbers onto every page of a document. It offers bottom-centre, bottom-right, and top-right positions, configurable starting number and font size, and live preview before download. The tool runs in your browser.

Drop a PDF here or click to browse

Dedicated pages

Direct links for specific page numbering tasks.

Stamp page numbers onto every page of a PDF directly in your browser. Choose position, start number, font size, and colour. No account required.

Number PDF Pages

Add page numbers to every page of a PDF in your browser. Set position, start number, and font size. Free tool. All processing runs in your browser.

Insert Page Numbers in PDF

Insert page numbers into every page of a PDF file in your browser. Choose position, start number, size, and colour. Private and free.

How to add page numbers to a PDF

Drop your PDF onto the upload area or click to browse, page thumbnails load automatically.
Choose the number position: bottom centre, bottom right, or top right.
Set the starting number, font size, and colour.
Click "Add page numbers" and download the numbered PDF.

Common uses

Adding page numbers to a thesis, manuscript, or report before submission. Merge all sections first so numbering is continuous
Numbering pages in a merged PDF document for easy navigation
Adding sequential numbering to a collection of scanned pages, use compress PDF afterward to reduce the final file size

Technical specification

Algorithm or formula: Iterates each page in the loaded PDFDocument and calls page.drawText() with the sequence number at the configured anchor (computed from page width/height and a fixed margin).
Browser API or library: pdf-lib for PDF write; embedded Helvetica from the PDF standard 14 fonts (no font upload required).
Input limits: PDF up to 100 MB. Starting number from 1; font sizes Small, Medium, Large.
Output: New PDF (application/pdf) with the original content plus a number stamped at the chosen position on every page.
Known limitations: Number positions are constrained to three fixed anchors. Numbering applies to every page; per-page skipping is not currently configurable.

Frequently asked questions

Is my PDF uploaded to a server?: No. Page numbers are stamped using pdf-lib running in your browser.
Can I start numbering from a number other than 1?: Yes. Set the starting number in the "Start at" field, useful for documents that continue from a previous part.
What positions are available for the page number?: Bottom centre, bottom right, and top right are available. These positions work well for most document types.
Can I choose the font and size?: Yes. Select from Small, Medium, and Large size options. The font is Helvetica for clean, universally supported rendering.

Reviewed and tested May 25, 2026.