Three straightforward steps
- Choose or paste the input requested by this tool.
- Configure the options and run the operation locally.
- Review and download or copy the result.
PDF TOOL
Add PDF Page Numbers
Place sequential page numbers in a PDF header or footer with configurable position and size.
ON-DEVICESelected input is processed in this browser.
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The selected input stays under your control
On-device processing means the input is handled by browser APIs on the device running this page. Closing or refreshing the page normally clears the active in-memory working session.
Read the Privacy Policy →Add consistent sequential numbers to PDF pages
Place readable numbering in a header or footer without rasterizing the original pages.
How to use it
- Choose a PDF and set the starting number.
- Select position, font size and an optional prefix.
- Generate the numbered copy and inspect margins on several pages.
Supported input
- Readable PDF documents
- Latin text prefixes supported by the built-in Helvetica font
Worked example
Add “Page 1” through “Page 42” at the bottom center of a board packet.
Limitations
- Numbers overlay existing content and do not expand page margins.
- Complex scripts require an embedded custom font and are not supported in this release.
Troubleshooting
- Choose a smaller font when numbers overlap content.
- Use a different corner when the footer already contains text.
Tool-specific questions
Can numbering start at zero or another value?
Yes. Enter the required integer starting value.
Are source pages re-encoded?
No. The number is drawn as an added vector text overlay.
Before you process
Can I use this add pdf page numbers online without uploading my input?
Yes. This tool is labelled On-device, so the selected input is processed in your browser and is not sent to a ForgeMyFile processing API.
What happens if the browser cannot process it?
The tool shows a readable error and stops. It does not silently fall back to a cloud upload.
Why can performance differ between devices?
The browser is doing the work locally, so speed and practical file size depend on available memory, CPU and browser capabilities.