Photo Upload Checklist: Format, KB and Dimensions
Prepare a portal photo by checking the three constraints that cause most technical rejections: file type, file size and pixel dimensions.
Updated September 26, 2026 · FileFit Tools practical guides
Quick checklist
Use the checklist as a starting point, then follow the instructions of the receiving website or organization. Save your original before editing.
Start with the portal, not the compressor
Before editing, copy the exact instructions from the page where the finished file will be uploaded. A requirement such as “JPG, up to 50KB, exactly 600 × 800 pixels” contains three separate checks. A file can pass two and still be rejected for the third.
Save the original image before making changes. An original phone photo or a clean scan provides a better starting point than a repeatedly edited copy. For personal identification documents, also check any separate framing, background and document-content requirements.
Recommended order of operations
1. Check accepted formats. JPG and JPEG usually mean the same format and can have different filename extensions. PNG is not interchangeable with JPEG when transparency or a strict format rule matters.
2. Crop to the requested shape without cutting off essential content. If you need a portrait ratio, cropping usually produces a more natural image than stretching.
3. Set exact pixel dimensions with Image Resizer when the portal asks for them. Pixel dimensions and file size are different quantities.
4. Only then compress to the size cap. Leave a little headroom beneath a strict maximum, particularly if the upload form rounds displayed KB differently.
5. Test the downloaded file—not the original—with Upload Readiness Checker. Keep the portal's instructions alongside the results.
Interpret the result correctly
A PASS means the measured file matches the selected rule you entered. N/A normally means the rule was ignored or does not apply to this file type. REVIEW flags a condition requiring a human check. None of these states promises that an outside portal will accept the submission.
For example, a 19.3KB JPG may pass a 30KB file limit while the dimensions row shows N/A because you selected Ignore dimensions. Choose Exact dimensions and enter 800 Ă— 600 only when that is the real requirement.
When to start again
If a face becomes blocky, signature strokes disappear or small printed text is unreadable, do not keep recompressing the already damaged file. Return to a clean source and adjust crop or resolution first. If the portal requires contradictory rules, contact its support rather than forcing unreadable output.
Common situations and next steps
| Situation | Suggested next check |
|---|---|
| Wrong file type | Convert only to a format permitted by the portal; then recheck the file extension. |
| Wrong dimensions | Crop to the correct aspect ratio and resize to the exact pixel width and height. |
| Too many kilobytes | Compress toward the stated maximum and confirm the size of the downloaded file. |
| Image looks poor | Return to the original and capture a clearer, better-lit source. |