GUIDE · 2026-10-11
How to Fix “Background Must Be White”
A white-background rule is a content constraint, not just a file-format rule. Remove or replace the background before export.
Open the toolOpen white-background preset →Read the requirement literally
Treat each stated field value as a separate constraint: shape, pixels, format, background and file size can fail independently.
Change only what failed
Do not reduce JPEG quality to solve a pixel-dimension error, or change DPI metadata to solve a real pixel requirement.
Verify before submission
Use the linked preset as a starting point, preview the result, and confirm the current receiving form requirement before final submission.
Do it now, not one file at a time.Open white-background preset →