A website says your photo cannot be uploaded, but the image opens normally on your phone. The problem may be the file's actual format, its dimensions, byte size or a browser issue. This guide helps you isolate the cause without destroying the quality of a good original.
1. Copy the exact error message
Before changing anything, note what the portal says. “Maximum 200 KB” means a file-size cap. “500 × 500 pixels” describes dimensions. “JPEG only” is a format restriction. A vague “upload failed” may be unrelated to the image itself. Check any instructions next to the upload field as well.
2. Check four facts about the file
- Format: the file should actually be encoded in an accepted type, not simply renamed.
- Size: compare KB or MB against any minimum and maximum limits.
- Dimensions: inspect width and height in pixels; keep the required orientation.
- Content: verify that required faces, documents, signatures or product details remain fully visible and legible.
| Error | Likely first action |
|---|---|
| Unsupported type | Convert to the accepted JPG, PNG or WebP format. |
| Exceeds size limit | Compress toward the stated KB limit. |
| Wrong dimensions | Crop if necessary, then resize to the stated pixels. |
| Image is blurry | Return to a better original; reduce compression. |
| Upload failed / network | Check connection, file permissions and portal availability. |
3. Edit the smallest thing necessary
If a photo is already the right width and height, do not crop it simply because the file is too large. Instead, try compression. If it is the wrong shape, use the cropper before the resizer. If the extension is unsupported, use the converter. Working from a retained original helps you reverse a bad export.
4. Try uploading the exported copy
Open the new file and inspect it. Confirm the exact final file name and extension, then select the exported copy—it's easy to reselect the original accidentally. For a persistent generic error, try a fresh browser tab, check browser file-access permissions and look for portal maintenance notices.
What not to do
- Do not rename a PNG to JPG without converting it.
- Do not stretch a portrait into a square without cropping.
- Do not turn an unreadable signature or face into a tiny file merely to meet a number.
- Do not assume every application portal uses the same specifications.
For common KB targets, follow the 100 KB / 200 KB walkthrough. If none of the published checks solves the issue, contact the portal operator with the error text and non-sensitive file details. Don't send personal documents to random third-party helpers.
One small next step.
Use Manglo's free toolkit to put the ideas in this guide into practice. No sign-up required.
Check an image-size target →