PDF page size checker
Check the page size of every PDF page in mm, inches and points. Detects A4, Letter, Legal and mixed sizes. Free and private.
PDF page size checker – Free, Private & Online
Instantly see whether your PDF is A4, US Letter, Legal or a custom size — for every page — with dimensions in millimetres, inches and points.
How to check PDF page size online
- Click the upload area or drag and drop your file.
- Adjust the options to suit your document.
- Click the button to start — processing happens instantly in your browser.
- Download your new file.
Why use our PDF page size checker tool?
- 100% private: your files never leave your device — everything runs locally in your browser.
- Free with no sign-up, no watermark and no daily limits.
- Works on Windows, Mac, Linux, Android and iPhone in any modern browser.
Common uses
- Preparing files for printers and publishers
- Finding mixed page sizes in merged documents
- Checking compliance with submission rules
Frequently asked questions
How do I make all pages the same size?
Use Resize PDF pages.
Are my files uploaded to your server?
No. The PDF is processed by your own browser, so confidential documents stay on your device.
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