How to use PDF Page Size
- Choose one PDF within browser safety limits.
- Review physical page dimensions or select target settings.
- Inspect the measured result before download.
PDF Page Size Checker
Check every PDF page's physical dimensions, orientation, rotation, and closest common paper size—not its file size.
The PDF and physical dimensions stay in browser memory. This checks page dimensions, not file size.
Add a PDF sourceOne PDF · 100 MB and 300 page safety limitsChoose from your device or drag and drop a file here.
Check every PDF page's physical dimensions, orientation, rotation, and closest common paper size—not its file size. Processing stays on your device and measured results or a reopened generated PDF are shown before download.
How OpenFileTools processes it
Local processing, explicit choices.
The managed session reads structural page viewports without rendering every page, then applies centralized point, inch, millimeter, orientation, and nominal-paper calculations.
Questions, answered.
Is my source uploaded?
No. Source bytes, settings, dimensions, and generated output stay in this browser tab.
Does this change the original?
No. Inspection is read-only and generated results are separate downloads.
What are the practical limits?
Nominal paper names use a centralized tolerance; unmatched pages are labeled Custom.