There are two separate questions here: “Can I make this image?” and “Will the authority accept it?” Good preparation answers the first without pretending to control the second.
Treat the error as a clue
Write down the exact rejection message. Then test one variable at a time: file format, file size, dimensions, crop, background and image quality.
Keep a copy of the version that failed
When troubleshooting, do not overwrite the previous file immediately. A simple filename such as passport-original.jpg, passport-size-fixed.jpg and passport-upload-version.jpg makes the workflow auditable and prevents accidental loss of the original.
Your master is the valuable asset
The original portrait is the version worth preserving. Application-ready files are derivatives; keep them separate so one future requirement does not force you to reshoot or re-edit from a low-quality copy.
What the words hide
Behind “passport size” are several independent questions: how large is the canvas, how large is the face, what background is allowed, how recent is the photo and what edits are permitted? A good guide answers those questions instead of giving one number.
Use the exact rule set attached to your application.
What to remember from this page
For a family or multi-document job, label each output with both person and destination. It takes seconds and prevents mix-ups when several similar photographs are sitting in the same folder.
How to Fix an Overexposed Passport Photo
Use the Studio for production and the issuing authority for the rule. That separation keeps the workflow practical and honest.