How to Add Page Numbers to a PDF

1. Scroll up to the tool above: Begin by accessing the PDF Page Numberer tool located above this section.
2. Drag and drop your PDF: Simply drag your PDF file into the designated area or click to select it from your device.
3. Preview your file: Once uploaded, a thumbnail of your PDF will appear, allowing you to verify the document.
4. Set numbering options: Choose the starting page, number format, and position for the page numbers.
5. Download your numbered PDF: After setting your preferences, click the Download button to save the modified PDF directly to your device.

Common use cases

Eliza, a paralegal, uses the PDF Page Numberer to add ‘Page X of Y’ numbering to a 250-page court filing. Sequential numbering is critical for the case docket, and Eliza appreciates that her sensitive legal documents are processed entirely in her browser, ensuring no data is exposed to third parties.

Henrik, a self-publishing author, relies on the tool to number chapter pages of a book PDF, starting from Roman numerals on the front matter and switching to Arabic at chapter 1. Henrik values the browser-based privacy, knowing his creative work remains confidential without the risk of upload.

Dana, an event planner, adds bottom-center page numbers to a 40-page wedding-itinerary PDF. This helps guests quickly locate sections during the rehearsal. Dana finds the tool’s privacy features particularly reassuring as she handles sensitive event details.

Kim, an academic, uses the PDF Page Numberer to number a long thesis PDF with continuous numbering starting from page 5 to skip the title and abstract pages. Kim appreciates the privacy of the browser-based process, as academic work often requires stringent confidentiality.

How it works (privacy & technical)

The PDF Page Numberer operates entirely in your browser using pdf-lib 1.17.1 and PDF.js 3.11.174. PDFs are loaded as Uint8Array byte streams into browser memory, where operations like PDFDocument.copyPages and getPage are executed in the JavaScript engine. This client-side processing means the browser network layer is never involved for file content, contrasting with server-based tools that require file uploads. Your files never leave your device, ensuring they do not appear in any server logs.

Frequently Asked Questions

Are my files uploaded to your servers?

No, your files remain on your device. The PDF Page Numberer uses pdf-lib and PDF.js to process your PDF entirely in your browser, ensuring privacy and security.

Is there a file-size or page-count limit?

There are no file-size or page-count limits. However, extremely large files may exceed your browser’s memory limits, typically around 2GB for most modern browsers.

Does this work on mobile?

Yes, the tool works on mobile devices as long as your browser supports pdf-lib and PDF.js, including Chrome and Safari.

Can I skip the cover page and start numbering from page 2?

Yes, you can customize the starting page for numbering. Simply set the starting page to 2 to skip the cover page.

Can I customize the number format, like ‘Page 1 of 10’?

Yes, you can customize the number format. The tool supports various formats, including ‘Page X of Y’, allowing you to match your specific needs.

Can I choose font, size, and position for the numbers?

Yes, you can customize the font, size, and position of the page numbers. This flexibility ensures the numbers are displayed exactly as you need them.

Related Tools

PDF Watermarker — add stamps beyond page numbers; PDF Editor — broader page-edit needs; Organize PDF — reorder pages first.