How to Stamp "Page 3 of 12" Onto Every Page of a PDF

Stamping a running total onto every page - "3 / 12" instead of just "3" - gives a reader an immediate sense of how much document is left, which matters more for a long report or a scanned packet than it does for a short document where the total is obvious from flipping through it. Here's exactly how to add it.

Upload and see the live preview

On the PDF page numbers tool, drop a PDF up to 80 MB. The tool renders a live preview of the document's first page with a badge showing exactly what the stamp will look like, updating instantly as you change any setting below - so you can see the actual result before committing to it, rather than guessing at how position, format, and size numbers will combine.

Choose a position

A 3×2 grid offers six positions: top-left, top-center, top-right, bottom-left, bottom-center, bottom-right. Bottom-center is the default and the most common convention for a page number, but any of the six works - top-right is common for a running header-style number, bottom-left or bottom-right if the document already uses bottom-center for something else, like a footer line. This position is a physical spot on the page (the page's own bottom-right corner, always), not something that depends on the document's language or reading direction.

Choose the format

Three options: plain number ("3"), page-of-total ("3 / 12"), or the word format ("Page 3"). For "page X of Y," the total is computed automatically from the document's actual page count - you don't type it in, and it stays correct even if you're numbering a document you haven't counted the pages of yourself. When only some pages are numbered, the total counts the numbered pages: with the cover left bare, page 2 of a six-page file reads 1 / 5. This is the format worth choosing whenever a reader benefits from knowing how much is left, which is most long or multi-section documents.

One option, resolved differently on every page

Set the starting number and font size

By default, numbering starts at 1 on the first page that gets a number - and the Start at field, under Numbering details, changes that for the case where the count should begin somewhere else (covered in detail in the next guide). Font size defaults to 14 and can be set anywhere from 6 to 72; a page too small at the chosen size gets its stamp automatically scaled down rather than letting text run off the page's edge.

Why "page X of Y" beats a plain number for a long document

A plain page number tells a reader where they are; "page X of Y" also tells them how much is left, which genuinely changes how someone reads a long document. Flipping to page 40 of a document you don't know the length of gives you no sense of whether you're near the end or barely a third through - "40 / 45" resolves that instantly. For a short document (a two-page letter, a one-page form), the total adds little value and a plain number is fine; for anything running more than a handful of pages, especially a report, thesis, or filing someone's expected to read start to finish, the total is worth the extra characters.

Run it and download

Click the Number button - it says how many pages it will stamp - and every one of them gets its number in one pass, a cheap operation regardless of page count, since it's a single text-draw per page rather than anything involving re-rendering the page's existing content. The result downloads as a new PDF with the numbers baked directly into each page.

What to know about the numerals themselves

The stamped numbers are always plain Western digits (0-9) and, for the "Page X" format, the literal English word "Page" - in every language the site itself is viewed in, including Arabic. This is a deliberate, disclosed choice, not an oversight: reliably drawing shaped, right-to-left Arabic script directly into a PDF's content stream needs font and text-shaping support this tool doesn't currently carry, and Western digits in a page-number stamp are already the normal convention even in fully Arabic-language documents - Word and Google Docs both do the same thing by default. The tool's own surrounding interface (the Position, Format, and Font size labels) is fully translated regardless of which locale you're using; it's only the literal characters drawn into the output PDF that stay Western-numeral and English.

Documents with mixed page sizes or orientations

If the PDF mixes portrait and landscape pages - a common result of a scanned packet with a folded document photographed differently from the rest - each page's stamp position is calculated from that specific page's own width and height, not from a single value taken from page one. A "bottom-right" stamp lands in the actual bottom-right corner of every page, landscape or portrait, rather than at a fixed coordinate that would land in the wrong spot on a differently-shaped page.

What happens if you re-run the tool on an already-numbered PDF

It's worth knowing this doesn't detect or replace an existing stamp - if you run the tool a second time on a PDF that already has numbers baked into it (from a previous pass, or from wherever the document originally came from), the new stamp is drawn on top rather than replacing the old one, and you'd end up with two overlapping numbers on each page. If a document might already carry a number from an earlier step, check the live preview carefully before running this a second time, or start from a version of the file that predates the first stamp if one's available.

For the case of a document that shouldn't start numbering at 1 - a report with an unnumbered cover page or table of contents - see starting page numbers partway through. And for the broader reasoning behind needing this at all once a document is a finished PDF, see why Word's numbering doesn't carry over.