Add Page Numbers to PDF Free

What is Add Page Numbers?

Add Page Numbers is a free browser-based PDF tool powered by PDF-lib. Your documents are processed entirely in your browser and never sent to any server. Works with any standard PDF file. No Adobe Acrobat or software installation needed.

This tool lets you add page numbers to any pdf in seconds without installing any software or creating an account. Everything runs directly in your browser for maximum privacy. Your files and data never leave your device.

Use it for quick tasks at any time from any device — desktop, tablet or mobile. No subscription, no ads, no limits.

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Instant results

No server processing or wait

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100% private

Files stay on your device

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Always free

No subscription or fees

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Mobile ready

Works on any device

How to use Add Page Numbers

Upload the PDF you want to add page numbers to
Choose position: bottom-center, bottom-right or any corner
Set the starting number and customize font size if needed
Click Apply and download your paginated PDF

Why use OnlineToolsPlus?

PDF tools on OnlineToolsPlus use PDF-lib — a JavaScript PDF engine that runs locally in your browser. Your documents are never uploaded to a server, which means no privacy risk for sensitive contracts, financial documents or personal files. With 25+ free PDF tools covering merging, splitting, compressing, editing and converting, you have a complete PDF toolkit at no cost.

Frequently asked questions

Where are page numbers added?

Page numbers can be positioned at the bottom center, bottom left, bottom right, top center, top left, or top right of each page.

Can I customize the font and size?

Font size and style options are available. You can choose a size that fits your document style.

Can I start numbering from a specific number?

Yes. If your document starts at page 5 in a larger document, you can set the starting number accordingly.

Does adding page numbers change the PDF layout?

Page numbers are added as an overlay on top of the existing content. They appear over the content area rather than adding a new margin. If your document already has narrow margins, ensure the number position does not overlap important content.

Can I add page numbers to a scanned PDF?

Yes. Page numbers are added as a text overlay on each page image. The underlying scanned content is unchanged.

Does this tool require an internet connection?

No. Everything runs locally in your browser.

Is Add Page Numbers to PDF Free free to use?

Add Page Numbers to PDF Free is completely free with no subscription, no trial period, and no credit card required. There are no usage limits, watermarks, or premium tiers. The tool is funded by the existence of the wider OnlineToolsPlus platform rather than by charging users for individual tools.

Does Add Page Numbers to PDF Free work on mobile devices?

Yes. Add Page Numbers to PDF Free works on any modern smartphone or tablet — iPhone, iPad, Android phones and tablets. Open it in Safari, Chrome, or Firefox on your device and it functions identically to the desktop version. The interface is responsive and adjusts to smaller screens automatically.

Do I need to install anything to use Add Page Numbers to PDF Free?

No installation is required. Add Page Numbers to PDF Free runs entirely in your web browser. Open the page and start using it immediately. There is no app to download, no browser extension to install, and no account to create. It works on Windows, macOS, Linux, iOS, and Android — any device with a modern browser.

Is my data private when using Add Page Numbers to PDF Free?

Yes. All processing happens locally in your browser. No data you enter — text, files, or settings — is sent to any server or stored anywhere outside your device. OnlineToolsPlus has no server-side processing for this tool. Your data is as private as anything else on your device.

Sensitive documents stay private. Contracts, financial statements, personal photos, and medical records never leave your device.
No account required. There is nothing to sign up for, no password to manage, and no personal information collected.
No usage limits or rate limits. Browser-based tools are not throttled by server capacity. You can use the tool as many times as needed.
Works offline (after first load). Once the page is loaded, most functionality works without an active internet connection.

This matters for several reasons:

Add Page Numbers to PDF Free on OnlineToolsPlus runs entirely in your browser. No file, text, or data you enter is ever sent to any server. Processing uses the JavaScript APIs built into your browser — the same environment used by banking and healthcare applications.

Privacy and Security

Business documents: Process contracts, proposals, and reports quickly without installing desktop software.
Academic work: Prepare submissions, merge research chapters, or split large PDFs for focused review.
Remote work: All processing happens in the browser — works on any device without VPN or enterprise software.
Privacy-sensitive files: Financial statements, medical records, and legal documents never leave your device.

Professional Use Cases

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Last updated: April 11, 2026

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