What the print workflow checks
Mockups Generator supports physical-size and resolution checks for flat artwork. Passing checks is not a guarantee of printer acceptance; review warnings alongside the supplier specification.
Print preparation
4 min read · Reviewed Print Size, Pixels and DPI: A Worked Example
A mockup shows perspective and lighting; a production file contains flat artwork. Begin with your supplier's physical dimensions, bleed and minimum effective resolution. Changing a DPI label alone does not add pixels.
Follow along with actual files: download the example inputs, outputs and report.
- 1
Record the supplier specification
Assume a 10 × 12 inch finished area, 300 DPI and 3 mm bleed per side. These are example inputs, not universal requirements. Confirm the actual safe area, format and color requirements with your supplier.
- 2
Add bleed to both sides
Ten inches is 254 mm; twelve inches is 304.8 mm. Adding 3 mm per side gives 260 × 310.8 mm. Bleed extends beyond the finished edge; a safe area protects important content inside it.
- 3
Calculate the pixels
Use pixels = millimetres ÷ 25.4 × DPI and round upward. This example requires 3071 × 3671 pixels including bleed. The finished area without bleed needs 3000 × 3600 pixels.
- 4
Check effective resolution
Artwork 2000 pixels wide across 10 inches has 200 effective DPI, even if its metadata says 300 DPI. Review preflight, crop and safe-area warnings, then inspect the flat export. Resampling cannot restore absent source detail.
Keep deliverables separate
Use the presentation mockup for a storefront or reviewer. Use correctly prepared flat artwork for production. A collection ZIP contains listing renders and a manifest, not automatically exported print files.
FAQ
Common questions
1.Is 300 DPI always required?
No. Resolution depends on process, print size, viewing distance and supplier. Use their specification; 300 DPI here is a worked example.
Put the guide into practice
Review the workflow and requirements before creating your next output.
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