Every page.
Measured.
Check your PDF’s page sizes. Spot the odd sheet. Know exactly what you’re working with.
Start with a PDF.
Drop a file here to measure every page.
Up to 50 MiB · 2,000 pages · No sign-up| Page | Paper ≈ | Width (mm) | Height (mm) | Orientation | Notes | Details |
|---|
Paper names are approximate (±0.5 mm per side). CSV includes all pages and boundaries in mm. See how we measure.
Private by design
Files are read in your browser. No PDF upload.
The whole document
Page-by-page sizes, grouped and easy to compare.
Nothing to install
A free tool. Open a PDF and get your answer.
A little context goes a long way.
Is this PDF A4
or US Letter?
Check every page, understand units, and find the sheets that differ.
Read the field note ↗02 / Beyond the visible pageOne page.
Five boundaries.
Why MediaBox, CropBox, and TrimBox can give you different answers.
Explore page boundaries ↗03 / Show your workMeasurements
you can check.
Download our PDFs, compare the expected results, and inspect the method.
Open the sample collection ↗Before you
send it to print.
How do I check the size of every PDF page?
Choose a PDF or try the sample above. The report lists width, height, paper name, and rotation for every page. Select a size group as your baseline, then filter to show pages of other sizes.
Does this change or resize my PDF?
No. PageCaliper reads page geometry and exports a report. It does not alter the PDF. To change dimensions, return to your source document or use a PDF editor.
Why do two PDF tools show different dimensions?
They may measure different boundaries or handle rotation differently. Our default is the intersection of CropBox and MediaBox, with rotation and UserUnit applied. You can choose a named boundary to compare.
Is my document uploaded anywhere?
No PDF bytes or filenames are sent by this tool. Your browser downloads the site and, if requested, our sample file. Processing happens locally; clear the report or close the tab to release it. Read our privacy note.
Can this certify a print-ready file?
No. This checks geometry only. It does not inspect image resolution, fonts, color, actual bleed artwork, or a printer’s requirements. Encrypted PDFs are unsupported; use an unencrypted copy you are authorized to inspect.