Why Was My Photo Upload Rejected? — Free, Fast & Private
Upload errors are unhelpful by tradition. “Invalid file”, “Upload failed”, or a red border and nothing else. Here are the eight real causes, ordered by how often they turn out to be the answer.
1. The file is too large
The obvious one, and still the most common. A phone photo is 4–12 MB; government portals often want under 200 KB. Compress and check the exact output size before retrying.
2. The file is too small
Far less obvious, and it catches people who followed “compress as much as possible” advice. Many portals set a floor as well as a ceiling — UPSC wants 20–200 KB, CTET wants 10–100 KB. Under the floor is a rejection exactly like over the ceiling. Use a gentler preset or a larger width.
3. The format is wrong — usually HEIC
iPhones save HEIC by default. Portals ask for JPG. The file may even look like a JPEG in your gallery and still be HEIC underneath. Convert it rather than renaming it — changing the extension by hand does not change the contents, and portals check the contents.
4. The dimensions are outside the allowed range
Portals set pixel minimums and maximums independently of file size. GATE requires 200×260 to 530×690 px; eBay refuses anything under 500×500. A heavily cropped photo can fail a minimum even though it is small and light.
5. The aspect ratio is wrong
Separate from dimensions, and it is the one compression can never fix. Square where portrait is required, landscape where square is required — the shape is checked as a ratio. Crop first; compressing a landscape photo just gives you a smaller landscape photo.
6. The megapixel count is over a cap
A limit expressed in pixels rather than bytes. Google Slides refuses images over 25 megapixels no matter how small the file is. If an error mentions megapixels, compressing harder will not help — reduce the dimensions.
7. The filename is wrong
Government portals frequently require exact filenames — UPSC wants photo and signature. Spaces, brackets and non-ASCII characters break some older systems too. IMG_2029 (1).JPG is a plausible culprit when everything else looks right.
8. The content fails a rule
Nothing technical is wrong with the file — the photograph itself breaks a requirement. Background not plain white, face too small in the frame, glare on spectacles, a shadow, a head covering, or a signature in the wrong ink. This is the category no file tool can fix, and on exam portals it is the most common rejection of all. Re-shoot against the published rules.
How to work out which one it is
Compare your file against the published spec in this order: format, then dimensions, then aspect ratio, then file size — both bounds — then filename. Four of the eight causes have nothing to do with bytes, which is why “compress it more” so often fails twice in a row.
MiniPx shows the exact output size and dimensions before you download, so each of those can be checked rather than guessed. Everything runs in your browser, which matters when the rejected upload is an identity document.