Does this upload my PDF?

No. All processing happens locally in your browser using pdf-lib. Nothing is sent to any server.

Does this work on mobile?

Yes. Works in Safari on iPhone/iPad and Chrome on Android. Tap the upload area to select a PDF.

No imposed limit. The practical limit is your device memory. Most modern devices handle hundreds of megabytes.

Yes. Set the Start number field to any value. Useful when the document is part of a series or the first pages are unnumbered covers.

Helvetica — a clean sans-serif font that reads well at small sizes and is embedded in all PDF readers.

No. Remove the password from the PDF first using your PDF reader, then use this tool.

Stamp page numbers onto every PDF page with custom position and style.

100% client-side · no upload

PDF file

Settings Font size (pt) Start number Position

Load a file to begin.

Choose your PDF using the file picker.
Select the page number position (bottom-center is most common for reports and theses).
Set the font size and the starting page number if needed.
Click Add Page Numbers and download the numbered PDF.

Does this upload my PDF?: No. All processing happens locally in your browser using pdf-lib. Nothing is sent to any server.
Does this work on mobile?: Yes. Works in Safari on iPhone/iPad and Chrome on Android. Tap the upload area to select a PDF.
Is there a file size limit?: No imposed limit. The practical limit is your device memory. Most modern devices handle hundreds of megabytes.
Can I start numbering from a page other than 1?: Yes. Set the Start number field to any value. Useful when the document is part of a series or the first pages are unnumbered covers.
What font is used for the page numbers?: Helvetica — a clean sans-serif font that reads well at small sizes and is embedded in all PDF readers.
Are password-protected PDFs supported?: No. Remove the password from the PDF first using your PDF reader, then use this tool.

Last updated: 2026-05-20 By jarvisbox