Read-only browser diagnostic

PDF Page Size Checker

Read each page’s visible dimensions, PDF rotation, display orientation, and approximate paper size without changing the file.

Choose a PDF to inspectOr drag and drop one PDF here · Maximum 25 MiB and 500 pages

Local PDF processing: the selected PDF is parsed in your browser and is not sent to the UseVelyo compression API. Standard page visit analytics may still run under the privacy policy, but PDF contents, the filename, and page-size results are not sent as analytics data.

What this beta reports

Dimensions come from the visible page area reported by PDF.js. When a PDF has a CropBox, the result may differ from the complete MediaBox.

“Approximate paper size” is a dimensional match, not proof of a physical paper stock, print setup, or compliance standard.

This tool does not resize, rotate, repair, render previews, or otherwise modify your PDF.

Password-protected PDFs are not supported in this beta. Damaged or unsupported files stop without returning partial page results.