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MyPDFToolbox

Add Page Numbers

Client-side

Number the pages of a PDF, choosing position, format and starting page.

Runs 100% in your browser · Options are saved only in this browser, if you allow it — never your files

Drag and drop your PDF here

or

Up to 100 MB per file · Your files never leave your device.

Position

Earlier pages (e.g. a cover) are left unnumbered.

Why add page numbers to a PDF?

Page numbers make a document easy to navigate, cite and discuss: “see page 12” only works when there is a 12 to see. They are expected in reports, theses, contracts, manuals and anything that will be printed. Documents assembled from several sources – for example after using Merge PDF – often end up with no numbering or with numbers that restart in every section. This tool adds consistent numbers to the whole file.

Numbered on your device

The numbers are written into the PDF by the open-source pdf-lib library, running in your browser. Your document is not uploaded anywhere and nothing is kept after you leave the page. The original pages are not converted to images: text, links and quality stay exactly as they were.

How to number the pages

  1. Drop your PDF onto the drop zone or click Choose file.
  2. Pick the position in the 3 × 2 grid: top or bottom, and left, center or right.
  3. Choose a format: a plain number, “1 / 10”, “Page 1”, “Page 1 of 10” or “- 1 -”.
  4. Set Start on page to skip a cover or table of contents, and First number to decide which number that page shows. For instance, start on page 3 with first number 1 so the introduction is page 1.
  5. Adjust the font size and the distance from the edge so the numbers do not overlap existing footers.
  6. Click Add page numbers, check the preview and download the result.

Details that are handled for you

  • Pages stored rotated inside the PDF get their numbers in the right corner and reading the right way up.
  • Positions are measured from the visible area of each page, so documents with mixed page sizes – A4 and Letter, or portrait and landscape – are numbered consistently.
  • In the “of 10” formats, the total counts only the numbered pages.

Frequently asked questions

Can I use Roman numerals for the front matter?

The tool writes Arabic numerals. A common approach is to split the document with Split PDF, number the main part, and merge it back with the front matter.

What font is used?

Helvetica, one of the standard fonts every PDF reader includes, in a dark grey that prints well on white paper.

Will my settings be remembered?

If you allow preferences in the privacy banner, the position, format, size and margin are saved in this browser for next time. Your files are never stored.