PDFLab

Add Page Numbers to PDF Online – Free & Private

Number your PDF pages with custom position, format, font size and starting number.

How to Add Page Numbers to a PDF Online

Number every page of your document in three quick steps.

1

Upload Your PDF

Drag and drop the document you want to number into the drop zone.

2

Choose the Style

Pick a position on the page, a number format, the first number and the page to start on.

3

Download Instantly

Click the button and your numbered PDF is created and downloaded in seconds.

Why Add Page Numbers with PDF Lab?

Full Control Over Numbering

Six positions, five formats, custom start page and first number, plus font size, margin and colour.

Works on Rotated Pages

Pages that are landscape or rotated still get upright, correctly placed numbers.

Your File Stays Private

Everything happens inside your browser. Your document is never uploaded to any server.

Original Content Untouched

Text, images and layout stay exactly as they were. The numbers are simply added on top.

When Do You Need to Number PDF Pages?

  • Reports and Theses: Skip the cover page and begin numbering from the introduction.
  • Contracts and Legal Bundles: Make long documents easy to reference with "Page 3 of 40" style numbering.
  • Scanned Documents: Add numbers to scanned pages so they can be cited and printed in order.
  • Handouts and Manuals: Give printed course material and guides clear, consistent page numbers.

Frequently Asked Questions

How do I add page numbers to a PDF?

Upload your PDF, choose where the number should appear on the page, pick a format such as "Page 1 of 10", and click Add Page Numbers. Your numbered PDF downloads automatically. Want to add a branded watermark instead? Try our Watermark PDF tool.

Can I skip the cover page?

Yes. Set "Start on page" to 2 and the cover stays unnumbered. If you want page 2 to show the number 1, leave "First number" at 1. If you want it to show 2, set "First number" to 2.

Which number formats are available?

You can use a plain number (1), "Page 1", "Page 1 of 10", "1 / 10", or a dashed style (- 1 -). The total in the "of" formats is calculated from the pages that are actually numbered.

Does it work with landscape or rotated pages?

Yes. The tool reads each page orientation and places the number so it appears upright in the position you picked, even on pages that are rotated 90, 180, or 270 degrees.

Will adding page numbers change my document?

Only by adding the numbers. Your existing text, images and layout are not re-rendered or compressed. The numbers become part of the page, so keep a copy of the original if you may need an unnumbered version later.

Is it safe to number confidential PDFs here?

Yes. The numbering runs entirely inside your browser using client-side JavaScript. Your file is never uploaded, stored, or seen by us or any third party.