Start with the moment of submission. What will the form ask you to upload or hand over, and what exact checks can fail? Work backwards from those answers.
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.
Do not confuse a preview with approval
A green check in a photo tool is a preparation signal, not a government acceptance decision. Use the tool to produce a cleaner file and the official workflow to decide whether it is acceptable.
Exam portals are moving targets
Exam and recruitment bodies can change their upload fields, file-size caps, and application instructions between cycles. That is why a responsible guide should explain the preparation method rather than hard-code one number forever. When you open the current notification or portal, copy the stated photo dimensions and file limits into your checklist, then use the image tool to meet them.
Keep the clean master portrait. It is common to need a second version later—for example, a different pixel size, a different crop, or a smaller file for another form.
A note for this exact search
A practical habit is to preserve the source image and note why the final crop was made. Future versions can then be created from the original instead of from an already-resized JPEG.
Why Exam Portals Reject Photos
Use the Studio to handle the preparation work—crop, framing, background and export—after identifying the exact document requirement.