See every page size in a PDF: points, millimetres, paper match, orientation and rotation — plus a mixed-size warning where it helps.
Sizes are in PDF points (1/72 inch). Millimetres are the honest physical size. “Paper” is a ±2 pt match against common sizes; anything else is reported as custom.
Rotation is applied to the reported orientation — a 90°-turned A4 reads as landscape.
Resize with the PDF Page Resize tool if the report shows a mixed document.
Your file is never sent to a server. It is read and processed by your own browser, and the results are not stored.
PDF geometry is in points: 1/72 inch. The inspector converts each box to millimetres with the same factor every print shop uses, and then tries an exact paper match within two points — loose enough for rounding, tight enough to be honest.
A3 is 841.89 × 1190.55, Letter is 612 × 792. Nothing here is rounded into a lie: a “Legal” match is 612 × 1008, with the tolerance printed for the sceptical.
Contracts with appended exhibits, scans at odd angles, slides copied into a letter. The summary tells you how many distinct sizes exist and whether orientations flip — the two questions a print run actually needs answered.
No. PDF Page Size Inspector runs in your browser, and the file is read there rather than sent to a server for processing. Our host still sees ordinary page-request metadata, which is described on the privacy page.
Yes, PDF Page Size Inspector is free, with no paid tier, no account, and no watermark added to your output. The limits are technical rather than commercial: file size, page count and supported formats are listed on this page.
PDF Page Size Inspector supports .pdf files up to 100MB directly in your browser.
Printing a mixed PDF to one paper size clips the larger pages. Knowing the sizes up front tells you whether to resize first, and which pages need attention.
A tolerance match against common sizes — A5, A4, A3, US Letter, Legal, Executive and Tabloid. A page matched to none of them is reported as its exact size in points and millimetres instead of being forced into a bucket.
Rotation degrees are applied to the reported orientation, so a 90°-rotated A4 page correctly shows as landscape.
No. Dimensions are read in this tab; the file stays on your device.