Prepress desk
Get the size right
Enter trim millimeters and DPI to get required pixels.
- No account
- Images stay local
- Formulas published
Related tools
Common prepress math
FAQ
Notes
Does changing the DPI tag sharpen the image?
No. Sharpness depends on real pixels and final print size.
Why a 1-pixel difference?
mm → pixels often yields fractions; we round. A 1-pixel gap is usually fine.
Ready for the printer?
Use this to check size and pixels—not as a substitute for the printer template.