A photo can look perfectly normal on a phone and still fail a form. The missing piece is usually one of the technical rules around composition, file handling or editing.
Design the output around the paper
For physical photos, the paper is the canvas. Decide the finished photo dimensions, number of copies, spacing and safe margins before exporting the sheet. Then make sure the print dialogue does not rescale the page.
A small test prevents a large reprint
Measure one printed copy after the first run. If it is larger or smaller than intended, stop and correct the scale setting before printing the entire sheet. “Fit to page” is convenient for ordinary documents but can change the physical size of an ID photograph.
When the rule is strict
Prefer a fresh, controlled capture over aggressive software repair. A clean original is easier to defend and easier to reuse for another legitimate application route.
The physical result deserves its own quality check
When the final output is a print sheet, check one physical copy rather than trusting the preview alone. A printer can introduce scaling, border expansion or colour shifts that are invisible in the exported PDF or JPEG. A small ruler or a known reference measurement can confirm the actual dimensions before you produce the full batch.
Practical detail to carry forward
When you are done, open the final file once more from disk rather than from the editor. That confirms the exported file—not just the preview—contains the intended crop and dimensions.
Why Passport Photos Look Different When Printed
Prepare the file, inspect it at full size and save the exact version that belongs to your application.