Add Page Numbers to PDF - Customize & Format Online

Easily customize and add page numbers to your PDF documents. Choose format, font, size, color, position, and which pages to number. Free, secure, and processed in your browser.
Secure & Private: PDF operations are processed entirely in your browser.

Your Free PDF Page Numbering Tool

Upload PDF for Page Numbering
Select a single PDF file to add page numbers.

Click to upload or drag and drop

Max file size: 10MB. Accepted: .PDF, PDF

How to Add Page Numbers to a PDF in 3 Simple Steps

1. Upload PDF
Click the upload area or drag and drop your PDF file. The tool will quickly load your document, ready for numbering.
2. Customize Settings
Use the options panel to set the format, font, size, color, position, margins, and page range. See your changes in the live preview.
3. Add Numbers & Download
Click "Add Page Numbers." Your new PDF is processed instantly in your browser and is ready for immediate download.

What To Do Next With Your Numbered PDF?

Compress PDF
Reduce the file size of your numbered document for easier sharing and storage.
Organize Pages
Need to make final adjustments? Reorder, rotate, or delete pages from your PDF.
Watermark PDF
Protect your document by adding a custom text watermark like "DRAFT" or "CONFIDENTIAL".

Frequently Asked Questions

Is it safe to add page numbers to my PDF here?

Yes, it's completely safe. One23PDF processes your file directly in your browser. Your PDF is never uploaded to our servers, so your data remains 100% private.

Can I choose which pages get numbered?

Absolutely. You can choose to number all pages or specify a custom range (e.g., '2-10, 15, 18-end'). This gives you full flexibility for any document type.

What formatting options are available?

You can fully customize the appearance. This includes the text format (using '{P}' for the page and '{T}' for total pages), font type, size, color, opacity, and precise positioning with margins.

Can I see a preview before applying the numbers?

Yes, the tool provides a live preview of how the page numbers will look on the first page of your PDF, so you can make adjustments and get the perfect result before finalizing.

Further Reading & Resources

The Security Risks of Using Online PDF Tools

Understand why browser-based PDF processing is critical for maintaining the privacy and security of your documents.

The Rise of Browser-Based PDF Editors: Security Meets Convenience

Explore the benefits of client-side PDF tools, which enhance security without sacrificing user-friendliness.