Add Page Numbers to PDF
Processing entirely on your device — large files may take a moment.
Set the first number and every page is stamped 1, 2, 3… bottom-right in a small, unobtrusive grey — the classic position printers and binders expect.
Numbers are real PDF text (not burned pixels), so they stay sharp at any zoom and print cleanly. The rest of the document — text, links, forms — is untouched.
How to add page numbers
- 1
Select your files
Drag & drop your PDF files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to PDF". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted PDF file individually, or grab everything at once as a ZIP archive.
About the PDF format
PDF (Adobe, 1993; ISO 32000 since 2008) exists for one promise: the document looks identical everywhere, forever. Fonts get embedded, layout is fixed to the point, and a contract printed from a 2003 file renders the same as one created this morning. That fixed-layout guarantee made it the standard for invoices, manuals, forms, e-books and anything with legal or financial weight.
The same design is what makes PDFs stubborn. They are meant to be presented, not edited — text lives in positioning operators rather than paragraphs, so extraction and re-flow are approximations. Scanned PDFs are worse: pure images with no text layer at all until OCR enters the picture. Still, no other format comes close for final-form document delivery.
+Strengths
- ✓Pixel-identical rendering on every device and printer
- ✓Fonts, images and color profiles travel inside the file
- ✓Mature ecosystem: forms, signatures, annotations, encryption
!Limitations
- −Hard to edit by design — even small changes need tooling
- −Text extraction is an approximation, not a conversion
- −Scanned PDFs are images without OCR
Frequently asked questions
Can I start counting from a specific page?
Set the first number freely — useful when this PDF is a continuation of another document. Numbering always covers every page of the file.
Can I choose the position or format?
Bottom-right, plain numbers for now — "Page 3 of 10" styles and footers are on the roadmap.
Will it overwrite an existing stamp?
It draws on top, so a second pass doubles the numbers. Use this tool on documents that do not already carry page numbers.