How to add page numbers to a PDF
- Drag one PDF file into the area above, or click it to browse. The total page count appears in the list the moment the file is read.
- Pick a position (top or bottom × left, center, or right — six spots) and a format (1 / 1 of N / - 1 - / Page 1). Adjust the starting number and font size if needed, and turn on Skip first page if the document has a cover.
- Click Add page numbers. Numbers are stamped on every page and a file named original_numbered.pdf downloads automatically.
- The result message tells you exactly how many pages were numbered, so you can confirm the skip-cover setting at a glance.
What makes this different from other page number sites
Typical online page-numbering services work by uploading your file to their servers, stamping it there, and sending it back. You have no way to verify when your document is deleted or who can view it during processing. If the file is a business report, a contract, or a thesis draft, that's a real concern.
ThisIsMyPDF's page numbering tool never sends your file anywhere. Counting, drawing, and saving all happen on your own device, using technology built into your browser. That design gives you three advantages:
- Privacy — your file never leaves your device, so there is simply nothing to leak.
- Speed — with no upload or download queue, even documents hundreds of pages long finish in seconds.
- No limits — we pay no server costs for processing, so we don't cap file size or how often you use it.
Choosing a format, position, and starting number
Four formats are available. 1 is a clean plain number, - 1 - is the classic decorated style common in print, and Page 1 spells it out. 1 of N stamps something like "3 of 12" — and here N is the count of pages that actually get a number. With a 10-page document and Skip first page on, only the 9 body pages are numbered and the stamps automatically read 1 of 9 through 9 of 9. The cover never skews the total to "of 10".
The default position is bottom center, with six spots to choose from: top or bottom, left, center, or right. The margin is about 28 pt (roughly 1 cm) from the edge, safely inside typical document margins. If a stamp lands on existing text or an old page number, just pick a different corner and run it again — the original file is untouched and the output is saved as a new file, so retrying costs nothing.
The starting number defaults to 1 but accepts any value. That's useful for continuous numbering across split volumes (if volume 1 ended on page 48, start volume 2 at 49), or for submission rules that require the body to begin at a specific number after the cover and table of contents. Everything uses a standard PDF font, so there is nothing extra to download and processing starts instantly.
When to use it
- Meeting submission rules that require page numbers on reports, theses, and assignments — universities, journals, and agencies usually expect a bottom-center number
- Marking scanned contracts and exhibits as "page X of Y" so every sheet is accounted for (the 1 of N format)
- Stamping numbers before printing and binding, so loose sheets can always be put back in order
- Documents with a cover page — skip the cover and start numbering from the body (Skip first page)
- Split course packs or manuals that need numbering that continues across volumes (custom start number)
Frequently asked questions
Are my files really never uploaded to a server?
Correct. The entire numbering job — counting, drawing the digits, and saving — runs inside your browser, on your own computer or phone. Open your browser's network tab and you will see no file upload requests. Reports, contracts, and manuscripts are safe to use here.
How is the N in the "1 of N" format determined?
N is the number of pages that actually receive a number. For example, with a 10-page document and Skip first page turned on, numbering starts on page 2 and the stamps read 1 of 9 through 9 of 9. The total adjusts to the numbered pages, not the raw page count, so a cover page never throws it off.
Can I start numbering from something other than 1?
Yes. Type any number into the Start at field and the first stamp uses that value. This is handy when a document is split across several files — if volume 1 ended on page 48, start volume 2 at 49 for continuous numbering.
Can I add page numbers to a password-protected PDF?
PDFs with an open password cannot be read for security reasons, so a notice is shown instead. Remove the password in a PDF viewer, save a copy, and try again with that file.
What if the number overlaps existing content or old page numbers?
Numbers are drawn on top of each page, so anything already printed in the same spot will show through. Switching to one of the six positions (top or bottom, left, center, or right) usually finds an empty corner. Your original file is untouched — the result is saved as a new file, so you can retry as many times as you like.