Add Page Numbers to PDF

Add page numbers to a PDF for free, entirely in your browser. Pick a position — bottom-center, corners, or top — and the numbers are stamped onto every page. Your file is processed on your device and never uploaded.

Drop a PDF to start editing

Everything runs in your browser — your file is never uploaded.

100% private. Your PDF is opened, edited, and exported right here in your browser — it is never uploaded.

Need OCR, redaction, signing, or to edit text? Get the free DocLab desktop app →

Add Page Numbers to PDF — how it works

Open your PDF. Drag in or choose a PDF; every page appears as a thumbnail.
Choose a position. Open the Page numbers tool and pick where the number sits (bottom center, bottom right, top, and so on).
Apply and download. Apply numbers every page, then download the numbered PDF to your device.

Your files never leave your browser

Page numbers are added on your own device. The PDF is opened in your browser, the numbers are drawn onto each page locally, and the file is saved straight to your downloads — there is no upload step and no server involvement. A strict Content-Security-Policy prevents the page from transmitting your document, the tool works offline once loaded, and the code is open source so you can verify it. Numbering a confidential report or contract here never exposes it to a third party. Read the privacy policy →

Why use DocLab

Free with no account or sign-up
Choose corner or center placement
Numbers stamp onto every page in one step
Nothing is uploaded — your file stays on your device
No page or file-size limits
Works on Windows, Mac, Linux, ChromeOS, and mobile

Frequently asked questions

Are my files uploaded to add page numbers?

No. Numbering happens locally in your browser; the PDF is never sent to a server.

Is it free, and do I need an account?

Yes — completely free, no account, no sign-up, and no watermark added.

Can I start numbering from a specific number or page?

You choose the position; the full editor lets you combine numbering with other edits. For complex schemes (skip the cover, Roman numerals), the desktop app has more control.

Does it work offline and on a phone?

Yes. It runs in any modern browser on desktop and mobile, and keeps working without a connection after the page loads.

Will the numbers overlap my content?

They sit in the margin at the position you choose. Pick a corner if your pages are dense near the bottom-center.