Drop PDF files to add page numbers
Stamps "Page X of Y" on every page
Or drag and drop them here
Your files stay on your device · 0 uploads
PRIVATE PDF TOOL
Add Page Numbers to PDF
Automatically number every page. Choose position and style — runs entirely in your browser.
100% client-sideNo server involved
No uploadsYour files stay private
No account neededStart merging instantly
How it works
Merge your PDFs in just a few clicks.
1. Upload your PDF
Select the PDF you want to number.
2. Choose position
Pick top or bottom, and left, center, or right alignment.
3. Set start number
Enter the starting page number and any offset for skipped pages.
4. Apply and download
Download your numbered PDF — processed in your browser.
Your files never leave your device.
WhisperDocs runs entirely in your browser. All processing happens locally on your device, with no uploads, no accounts, and no tracking. Ever.
Processed in your browser
100% private
You stay in control
Common questions
Everything you need to know about merging PDF files with Page Numbers.
Yes. Position page numbers at the top or bottom, and align them left, center, or right.
Yes. Set a custom starting number — useful when combining documents that continue from an earlier section.
Yes. You can configure which page numbering begins on, leaving cover pages unnumbered.
No. All processing happens locally in your browser. Your file stays private on your device.