How It Works
Upload PDF
Drop or select a PDF file.
Configure
Choose position, format, and starting number.
Download
Get your numbered PDF instantly.
Frequently Asked Questions
What page number formats are available?
Can I start numbering from a specific page?
Where can I place the page numbers?
About PDF Page Numbers
What this tool does
These tools let you merge multiple PDFs into one document, split a PDF into individual pages, compress large files for email, add page numbers, watermarks, or passwords, and convert between PDF and image formats.
Why use this tool
PDFs are the standard for invoices, contracts, reports, and forms. Being able to manipulate them without installing Acrobat or uploading to a third-party site saves time and protects confidential data. Everything processes client-side using pdf-lib and PDF.js.
How it works
The browser reads the PDF binary, parses its page tree and content streams, then performs the requested operation: re-ordering pages for a merge, extracting a range for a split, or re-compressing images for size reduction. The result is assembled into a new PDF that you download directly.
Pro tip
For the best compression, combine image downsampling with font subsetting. If your PDF is mostly scanned pages, converting to grayscale first can cut file size by half.
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