EveryPDFToolPDF Page Size Checker
Check the dimensions of every PDF page in millimetres and inches, identify portrait or landscape orientation, and see matches such as A4, Letter and Legal.
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Maximum file size: 50 MBCheck PDF page dimensions online
Upload a PDF to check the width and height of every page. The checker reports dimensions in millimetres and inches, identifies portrait or landscape orientation, and compares the page against common paper sizes such as A4, A3, US Letter and Legal.
A single PDF can contain pages with different dimensions. Checking each page individually is useful before printing, resizing, submitting forms, preparing documents for binding, or standardizing mixed-size PDFs.
How to check the page size of a PDF
Choose your PDF above and select Check Page Sizes. Every page is inspected separately so you can see whether the entire document uses one paper size or contains a mixture of dimensions.
PDF dimensions in millimetres and inches
PDF files internally store page dimensions using points. This checker converts those values into easier-to-read measurements in millimetres and inches so you can quickly understand the physical page size.
Identify A4, Letter, Legal and other paper sizes
The tool compares page dimensions with common formats such as A4, A3, US Letter and Legal. Pages that do not closely match a standard format can still be reported using their actual dimensions.
Check PDFs with mixed page sizes
One document can contain A4 pages, landscape pages and custom-size pages together. Mixed dimensions can affect printing, scaling, margins and document submission requirements.
Change or rotate pages afterward
If the dimensions need to be standardized, use Change PDF Page Size. If the dimensions are correct but the page is sideways, use Rotate PDF.
Read-only page size inspection
The checker analyzes page dimensions without intentionally modifying the PDF.
Frequently asked questions
How do I check the page size of a PDF?
Upload the PDF and choose Check Page Sizes. The tool reports the dimensions of each page along with its orientation and common paper-size match.
Can I see PDF dimensions in millimetres and inches?
Yes. PDF dimensions are stored internally in points, and the checker converts them to millimetres and inches for easier reading.
Can one PDF contain different page sizes?
Yes. Each page can have its own dimensions and orientation.
Does the checker edit the PDF?
No. It only reads the document structure.