Bleed & trim
Print bleed size
Bleed adds on all sides: 3 mm per side means +6 mm on width and height.
Input
Trim size and bleed per side
Common bleed
File size
216.0×303.0mm
- Pixel size
- 2,551 × 3,579 px
- Added on four sides
- 6.0 mm
- Trim size
- 210 × 297 mm
- Area increase
- 4.9%
File W/H = trim W/H + 2 × bleed per side; pixels still use mm ÷ 25.4 × DPI, rounded.
Example
A4 + 3 mm bleed = 216 × 303 mm
FAQ
Notes
Why +6 mm for 3 mm bleed?
Left+right and top+bottom each add 2 × bleed.
Always 3 mm?
Common, not universal. Follow the printer template.
Bleed on white backgrounds?
Depends on the workflow; templates may still require it.