PDF Bleed & Trim Size Checker
Check PDF trim size, bleed margins, MediaBox, CropBox, TrimBox and BleedBox directly in your browser before sending a file to print.
Private by design — your PDF never leaves your device.
Upload Your PDF
Choose a print-ready PDF to inspect its page dimensions and PDF page boxes.
What Is PDF Bleed?
Bleed is artwork extending beyond the final trim edge so small cutting variations do not expose unwanted white edges. Printer requirements vary by provider and product.
What Is Trim Size?
Trim size is the final width and height after the printed piece is cut. This is the intended finished page boundary.
MediaBox
The full physical page boundary defined by the PDF.
CropBox
The region normally displayed or printed when applicable.
TrimBox
The intended finished page boundary after trimming.
BleedBox
The region extending beyond the final trim for bleed content.
How to Check PDF Bleed
- Upload PDF: Choose your document locally.
- Choose expected trim: Select standard or custom sizes.
- Choose required bleed: Adjust based on printer requirements.
- Review page boxes: Inspect detected MediaBox, CropBox, TrimBox, and BleedBox.
- Review each side: Check Top, Right, Bottom, and Left bleed values.
- Check mixed page geometry: Ensure all pages have consistent dimensions.
- Use the page preview: Visually inspect the box overlays.
- Confirm final requirements: Always verify with your printer.
How Much Bleed Should a PDF Have?
A standard bleed of 0.125 in (3.175 mm) is common in commercial printing, but it is not universal. Always confirm specific requirements with your print provider.
PDF Bleed vs Safe Margin
Bleed extends outside the trim area to prevent white edges. Safe margin keeps critical content like text and logos inside the trim area to avoid being accidentally cut off.
FAQ
What is a standard PDF bleed?
0.125 inch is common, but required bleed varies by printer and product.
What is a TrimBox?
The intended final page boundary after trimming.
What is a BleedBox?
The PDF region defining bleed beyond the final trim boundary.
Why is my TrimBox missing?
Some PDF export workflows do not define it explicitly.
Why is my BleedBox missing?
Not all PDF creators write BleedBox metadata.
Does this tool upload PDFs?
No. All processing happens locally in your browser memory.
Does passing guarantee printer acceptance?
No. Printers also check color, fonts, resolution, and other production requirements.
Your PDF Stays Private
PDF dimensions and page boxes are inspected directly in your browser. Your document is not uploaded to our servers.