🔢 PDF300
Add page numbers to a PDF
A merged file loses whatever numbering the parts had, and a printed stack with no numbers is hard to put back in order after it drops. Stamp numbers on and the problem goes away.
Open the toolRuns entirely in your browser. The file never leaves your device.
How it works
- Add the PDFDrop the file onto the page.
- Set the corner and the first numberYou can start at something other than 1 when the file is a chapter.
- DownloadSave the numbered file.
Questions
No. This tool runs in your browser with JavaScript, so the file never leaves your device. Once the page has loaded you can even go offline and it still works.
Neither. No account, no watermark on the output. The practical limit is your device memory — large scanned files use more of it.
Guide: numbering well
When you'd use this
A single chapter saved from a longer manuscript, a set of scanned pages joined with Merge, or a printed handout that might be dropped and need reordering — all three share the same problem: no reliable way to tell which page comes after which. Printed numbers solve it permanently, independent of file order or what the reader's PDF viewer happens to show in its own page counter.
Choosing position and format
Six placements are available — the four corners plus top-centre and bottom-centre — so numbers can sit wherever the page design leaves room; bottom-centre and bottom-right are the most common defaults for reports and manuscripts. Five formats cover the usual needs: a plain running number, "page / total" (useful so a reader always knows how much is left), a number between dashes, and two spelled-out variants ("Page 1" and "Page 1 of N") that read better in a formal document than a bare digit. Size is set in points and colour is fully open, so numbers can be made to match or deliberately contrast with the body text.
Starting from something other than 1
The start-number field exists for exactly the case where this file is one chapter of a longer work — set it to continue from wherever the previous chapter left off, rather than restarting at 1. This is also useful for appendices or supplementary sections that should carry on the main document's numbering rather than starting their own.
A note on existing numbers
This tool only adds a new printed number; it does not detect or remove numbers that already exist in the page content (for example, from a document that was numbered before being scanned). Running it on a file that already has visible numbers will place a second one on top, so check a source page first if you are not sure whether one is already there.
More questions
No — numbers are fixed at the moment you generate them. Add or remove pages first, then number the file last.
Not from this tool directly. Split the file with Split, number the parts you want, then merge them back together.
Use the server version, which does the same job without running in a browser tab.
Set the start number to 0 or a negative-adjusted value if you want the first content page to read "1" despite a cover sheet ahead of it; otherwise the cover counts as page 1.