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Select the PDF document whose page sizes you want to inspect.

Smart Maker
Professional Builder
Check the exact dimensions, standard paper size and orientation of every page in your PDF.
or drag and drop your PDF files here
Supports PDF files only • Maximum 20 files
Select the PDF document whose page sizes you want to inspect.
Smart Maker reads the exact width and height of each PDF page.
See standard size, millimeters, inches, points and page orientation.
PDF pages can have different sizes – A4, Letter, Legal, A3 or custom. The PDF Page Size Checker by Smart Maker reads exact dimensions of every page and shows width, height in mm, inches and points, standard paper name and orientation – Portrait, Landscape or Square. All processing in browser, 100% private.
For printing, all pages should be same size like A4. If some pages are Letter and some A4, printer will cut content. For office submission, government forms need exact A4 size. For designers, checking inches and points is needed for layout. If you merge PDFs from different sources, sizes become mixed – this tool shows which pages have different size so you can fix them before sharing.
All size checking happens locally in your browser. Your PDF is never uploaded to server, no file stored. Tool is free forever, no signup, no watermark. Only resume and biodata need login. Works on mobile and desktop.
Standard size is detected by matching dimensions to closest A series, Letter, Legal, Tabloid sizes. Custom sizes will be shown as Custom with exact mm. Rotation shown is internal PDF rotation flag, not visual orientation.