Add Page Numbers - Number PDF Pages Online Free
Stamp page numbers anywhere on your PDF
Add page numbers to your PDF with full control over position, size, and margin offset. Pick one of six positions — top or bottom, left, center, or right. Processed locally in your browser.
100 MB max per file
Drag & drop your files here
or browse from your device
PDF file · up to 100 MB each
Options
Font size in points (8–24)
Distance from the page edge in points (18–72)
100% FreeNo SignupFiles Never Leave Your Device
How to use this tool

Step 1: Upload your file
Drag & drop your file or click to browse. Files are processed locally in your browser and never uploaded.

Step 2: Adjust & process
Choose your settings and run the tool with one click.

Step 3: Download the result
Download your file instantly. Free forever, no signup, no watermark.
Why 123ToolKit?
| 123ToolKit | Typical online tools |
|---|---|
| Runs in your browser — files never uploaded | Uploads your files to cloud servers |
| Free forever | File size limits |
| No signup | Account required |
Add Page Numbers — FAQ
Upload your PDF, choose the position (top, bottom, or corners), set the font style, and download the numbered file.
Yes. The page-number tool is free and works instantly with no account.
No. Numbers are stamped on top of your pages without changing the original content.
You can choose which page the numbering starts on and set a custom starting number.
Yes. Processing happens in your browser and your files never leave your device.
Page numbers make long documents easier to navigate, print and reference in meetings or reviews. Pagination helps readers cite an exact page, keeps printed copies in order, and gives reports, theses, contracts and manuscripts a finished, professional feel.
Yes. Numbering your pages before printing keeps a long document in sequence if the sheets get shuffled, dropped or copied. Choose a bottom position for a classic book feel, then adjust the margin offset so the numbers sit clear of any binding edge.
Move the numbers further from the page edge by increasing the margin offset, which you can set between 18 and 72 points. You can also switch to another of the six positions, for example from bottom-center to bottom-right, to avoid busy areas.
The size can be set between 8 and 24 points, and 12 points is the default for everyday documents. Smaller sizes look discreet on reports, while larger numbers help on slides or documents printed for readers who prefer bigger, clearer text.
Yes. One run stamps the whole document, so you do not need to number pages one by one in an editor. The tool is free, adds no extra watermark of its own, and processes your file in your browser on any device.
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