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Add Page Numbers to a PDF

Stamp sequential page numbers onto every page, positioned and started exactly where you want — processed locally in your browser.

Add Page Numbers

Stamp sequential page numbers onto every page of your PDF.

Simple, consistent page numbering

A document without page numbers is harder to reference in a meeting, a review, or a printed handout — “see page 12” doesn't work if there's no number 12 to point to. This tool stamps a sequential number onto every page of your PDF using the pdf-lib library, choosing the position and starting number you specify, all processed in your browser.

You can place numbers in the bottom-center, bottom-right, top-center, or top-right corner of each page, and choose what number the first page should start at — useful if your document is one part of a larger set and needs to continue numbering from where the previous part left off, or if you want to start from 0 or skip a cover page.

Select your PDF, choose a position and starting number, and click Add Numbers & Download. Every page gets numbered in sequence, and the file downloads immediately.

How It Works

No installs, no accounts, and no waiting on server queues. Everything happens locally on your device.

1

Select Your PDF

Choose the document you want to number.

2

Choose Position & Start

Pick a corner for the numbers and set which number the first page starts at.

3

Download the Numbered PDF

Every page is stamped in sequence and the file downloads instantly.

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Frequently Asked Questions

Can I start numbering from something other than 1?

Yes. The Start at field lets you choose any starting number, which is useful if you're numbering a section of a larger document, want to skip a cover page, or need the numbering to continue from a previous file.

Where can the page numbers be placed?

You can choose bottom-center, bottom-right, top-center, or top-right, and the same position is used consistently across every page of the document.

Will adding page numbers overwrite existing content?

The page number is drawn in a small font size in the margin area of the page, positioned to avoid typical page content, though on documents with unusually large margins-filling content it may overlap. Review the downloaded file to confirm placement looks right for your specific document.

Does this work on documents that already have page numbers printed on them?

Yes, but the tool will add a new number on top of the page rather than detecting or replacing any numbers already printed as part of the original content, so you may end up with two numbers on the page in that case.

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