How to Add Page Numbers to a PDF (Free, In Your Browser)

A printed stack slides off the desk, an attachment gets forwarded three times, a reviewer prints a report double-sided and drops it — and suddenly nobody can tell which page follows which. Page numbers are the small, unglamorous detail that quietly holds a document together, and they're exactly the thing most PDFs arrive without.

Word processors add numbers live as you type. A PDF, though, is already finished. Once a report is exported, a scan is captured, or a packet is assembled from several sources, there's no footer setting left to toggle — you have to stamp the numbers on after the fact. That's the whole job of the Page numbers tool: it draws clean, consistent numbers exactly where you want them, entirely inside your browser tab, without ever uploading the file.

Not every document needs pagination. But when it does, missing numbers stop being a cosmetic nitpick and start being a problem — a filing gets rejected, a printed handout falls apart, a reviewer can't cite a specific page over the phone. The common cases where numbering earns its keep:

• Legal exhibits and filings. Courts, registrars, and agencies routinely require every page to be numbered so it can be referenced precisely. Sequential page numbers keep a bundle citable and prevent pages from going missing unnoticed.
• Reports and proposals. A twenty-page report that will be printed, passed around a room, and marked up needs numbers so comments can point to page 14, not "the one with the chart."
• Printed handouts and decks. Anything that leaves the screen and gets stapled — training material, meeting packets, workbooks — survives being shuffled far better when the pages are numbered.
• Merged documents. When you combine several PDFs into one, continuous numbering across the whole thing is what turns a stack of separate files into a single coherent document.

The tool keeps the controls tight and the preview honest: as you change any setting, every page thumbnail updates to show precisely where the number will land, so there's no guessing and no surprise export. Here's what you're actually adjusting:

• Position — nine anchor points arranged in a 3x3 grid. Click a corner or an edge center (bottom-center and bottom-right are the usual choices) and every page follows suit.
• Format — a bare number (1), Page 1, or 1 of N, where N is the count of numbered pages.
• Starting number — begin at 1 or at any number you like, which is how you continue a sequence from a previous volume.
• Font size — 8 to 36 points. Numbers render in Helvetica, one of the export-safe fonts that stays crisp and selectable in the output.
• Margin — the distance in points from the page edge, from a tight 8 pt out to a roomy 120 pt, so you can push numbers clear of an existing footer.
• Color — any color from the picker; the default is a near-black that reads cleanly on white pages.

The whole flow takes under a minute, and nothing leaves your device.

1. 1

   Open the tool and load your PDF

   Go to Page numbers and drop the file in, or click Choose PDF. The page grid appears with live number previews on every thumbnail.

2. 2

   Pick a format and position

   Choose 1, Page 1, or 1 of N, then click one of the nine anchor points. The thumbnails immediately show exactly where each number will sit.

3. 3

   Tune size, margin, and color

   Set the starting number, the font size (8–36 pt), the margin from the edge, and the color. If a number bumps into an existing footer, bump the margin up or switch corners until it clears.

4. 4

   Choose which pages get numbered

   Number every page, odd or even pages only, a typed range, or just the pages you click in the grid — handy for skipping a cover sheet.

5. 5

   Apply and download

   Click Add page numbers. The stamped PDF is processed locally and downloads straight away.

The three formats suit different documents. The bare number is the quiet, professional default — perfect for legal exhibits and formal filings where a clean digit in the corner is all anyone expects. `Page 1` reads a little friendlier and works well on reports and handouts where you want the label spelled out. `1 of N` is the reassuring one for printed material: a reader who's holding page 7 of 12 knows immediately whether they've got the whole thing.

Most documents want their numbers along the bottom — bottom-center for a symmetrical look, bottom-right for the classic "flip to find" corner. The margin is what saves you when a page already has a footer: a running title, a confidentiality line, a Bates strip from an earlier tool. Nudge the margin up a few points and the new number floats above the existing text instead of landing on top of it. Because the preview redraws on every thumbnail, you can scroll through a long document and confirm the placement holds on the pages that have footers and the ones that don't.

Real documents have exceptions, and the tool is built for them. Skip a cover page by numbering a range like 2-30, or switch to Selected mode and click every page except the cover. Number only odd or only even pages when you're preparing something for double-sided printing. And when you're continuing a sequence — say this is volume two of a filing that ended on page 148 — set the starting number to 149 so the pagination flows unbroken across volumes. The starting number and the page selection are independent, so you can begin numbering on page two while still printing 1 there, if that's what your format requires.

If your final document is being assembled from several files, the order of operations matters. Combine everything first with Merge PDF — or reorder and drop pages in Organize PDF — and only then run the numbering pass. Numbering last is the difference between one clean sequence from cover to back page and four separate documents that each restart at 1. If you're also filling or signing the file, do that in the editor before the final numbering step, so the numbers land on the finished pages.