PDF Page Dimensions — Inspect Every Page Size
Check the width, height, and orientation of every page in your PDF, in points, inches, or millimeters. See which pages match standard sizes and whether your document is uniform. Everything runs in your browser.
Key Features
Multiple Units
View page sizes in points, inches, or millimeters — switch instantly without re-processing.
Orientation Detection
Every page is classified as portrait, landscape, or square automatically.
Standard Size Match
Pages are matched against common sizes such as A4, A5, Letter, Legal, and more.
Document Summary
See total pages, the number of unique sizes, and whether the whole document is uniform.
100% Private
All processing happens locally in your browser. Your files are never uploaded to any server.
No Install, Free
Works on any device with a browser. No sign-up, no watermarks, and completely free.
What Can You Learn from PDF Page Dimensions?
Page dimensions tell you a lot about a PDF: whether it was built for printing, whether it is A4 or Letter, and whether pages are consistent. Mixed sizes are common in documents assembled from different sources, which causes problems when printing or submitting. This tool reads the width and height of every page and reports them in points, inches, or millimeters, detects each page's orientation, matches pages against standard paper sizes, and summarizes whether the document is uniform. You can also export the full report as JSON for further analysis. Everything runs locally in your browser, so your documents stay private.
How to Inspect PDF Page Dimensions
Inspecting page dimensions takes just a few steps. Everything runs in your browser.
Upload the PDF
Drag and drop a PDF file or click the upload area to select it.
Choose a unit (optional)
Select points, inches, or millimeters for the measurements. The default is points.
Analyze the document
Click Analyze Dimensions. Every page is measured and classified automatically.
Review and export
Browse the summary, size distribution, and per-page details, or export the complete data as JSON.
Good to Know
Dimensions are read from each page's media box. Pages that match a standard size within a small tolerance are labeled with the standard name (for example A4 or Letter). Password-protected PDFs must be unlocked before analysis. For very large documents, the details table shows the first 50 pages — export the JSON report to see everything.