PDF Page Size Checker
PDF Page Size Checker reports getSize() width × height for every page to two decimals in points. It does not name standard formats, convert units, account for page rotation in displayed orientation, compare MediaBox/CropBox/TrimBox/BleedBox, or verify print production settings.
Runs locally — files stay on your deviceHow large is one PDF point?
In default user space, 1 point is 1/72 inch.
PDF pages have multiple boundary boxes
Page size returned by a library can reflect its page dimensions, while visible or printable regions may be constrained by crop and other boxes.
How it works
The file is loaded, each page's getSize values are formatted to two decimals, and a text list is shown.
Key concepts
Rotation can swap apparent orientation
A page with width < height may display landscape when rotated.
Crop and media boxes differ
Visible area can be smaller than physical media.
When to use it
- Spot mixed page dimensions.
- Read raw point sizes.
- Check a basic export against expected dimensions.
When not to use it
- Do not assume the values equal trim size.
- Do not infer displayed portrait/landscape without considering rotation.
- Do not use it as preflight.
Worked examples
Letter
- Input
612×792 pt page- Expected output
612.00 × 792.00 pt
This equals 8.5×11 inches.
Mixed document
- Input
Different page dimensions- Expected output
One line per page
No normalization occurs.
Rotated page
- Input
612×792 with 90° rotation- Expected output
Underlying size still listed
Rotation is not reported.
Common mistakes
Reading points as pixels
They are PDF user-space units. Correction: Divide by 72 for inches.
Assuming crop size
Only getSize is shown. Correction: Inspect all page boxes.
Calling it print preflight
Bleed, trim, fonts, images, and color are not checked. Correction: Use preflight software.
Best practices
- Review rotation and boxes separately.
- Convert units explicitly.
- Use print-preflight tools for production.
Related operations and differences
Resize PDF Pages
Choose Resize PDF Pages when you need to change every PDF page to custom dimensions.; use PDF Page Size Checker specifically for page size.
Add Blank Page to PDF
Choose Add Blank Page to PDF when you need to append a custom-size blank page to a PDF.; use PDF Page Size Checker specifically for page size.
Add Page Numbers to PDF
Choose Add Page Numbers to PDF when you need to place centered page numbers on every page.; use PDF Page Size Checker specifically for page size.
Add Text Watermark to PDF
Choose Add Text Watermark to PDF when you need to apply a diagonal text watermark to every page.; use PDF Page Size Checker specifically for page size.
Crop PDF Pages
Choose Crop PDF Pages when you need to set a custom crop box on every PDF page.; use PDF Page Size Checker specifically for page size.
Delete PDF Pages
Choose Delete PDF Pages when you need to remove selected pages from a PDF.; use PDF Page Size Checker specifically for page size.
Limitations and privacy
- Width/height only, to two decimals.
- No unit conversion, rotation, named-size detection, box comparison, bleed/trim, or preflight.
- 80 MB limit.
The PDF is read and processed locally in this browser.
Frequently asked questions
Are values pixels?
No, points.
How many points per inch?
72.
Is rotation considered?
Not in the output.
Are CropBox dimensions shown?
Not separately.