The safest starting point is the application itself: identify the document, the country, and whether the photo is being uploaded, printed or both.
Do not repair everything at once
A rejected photo usually has a small number of failing conditions. Fixing all of them together makes it harder to know what actually worked.
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.
Before the upload field
Open the exported file outside the editor, check its actual dimensions and size, and compare the portrait with the current official examples. Keep the original capture untouched in case the application needs a different version.
Why this detail matters
A small technical mismatch can stop an otherwise complete application. File type, dimensions, framing and image quality are separate checks, so treat them separately when you prepare the output.
A note for this exact search
For this particular topic, save the final version with the destination and date in the filename. That makes a second application easier to prepare without guessing which export you used first.
How to Avoid Visa Photo Rejection
Use the Studio to handle the preparation work—crop, framing, background and export—after identifying the exact document requirement.