PDF Page Size Checker
PDF & documents · Done in 3 steps
- 1Choose a PDF
- 2
- 3
About
Check every PDF page's size in mm, inches and points, detect A4, Letter and other paper sizes, and spot mixed sizes or orientations.
How to use it
- 1Choose a PDF.
- 2Read the summary: how many sizes and orientations it contains.
- 3Switch units between mm, inches and points.
- 4Download the per-page table as CSV if you need it.
- You give
- One PDF file (up to 100 MB)
- You get
- Per-page dimensions, named paper size, orientation and rotation
- Good to know
- Works best with files under 100 MB (the upload cap); very large files depend on your device's memory. Measures the visible (crop) box with rotation applied, which is what viewers and most printers use; bleed and trim boxes aren't shown. Named sizes match within ±2 mm. Password-protected PDFs can't be opened.
- Privacy
- Processed on your device. Nothing is uploaded, stored or logged.
- Last tested
- 2026-10-28
FAQ
How do I know if my PDF is A4 or Letter?
Drop it in: the summary says “Every page is A4 portrait” (or similar), and any pages that differ are listed with their own size.
Why are the sizes in points?
PDFs measure everything in points (1/72 inch). We convert to millimetres and inches for you; switch units with the toggle.
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