PASSFILE.
PASSFILE SMART · Free image utility

Image upload rejected?
Find out why. Fix it.

Paste an upload error, inspect the original image and check which technical requirements do not match. File Doctor suggests corrections and verifies the output, directly in your browser.

1. Choose your original image

Get format, file size, pixel dimensions, resolution in megapixels and extension automatically.

Click or drop your image hereJPG, PNG, WebP · max 25 MB · processed locally

2. Paste the requirements

Examples: “JPEG, 600x600 px, maximum 240 KB” or “minimum 1200x1200, PNG or JPG, under 2MB”. You can also enter settings manually.

3. Review output settings

Choose an image to inspect its properties.
What PASS means: the selected technical dimensions, format and file-size conditions were met. It does not certify acceptance by an external portal or verify image content, color profiles or print DPI. This beta parses common English error messages with rules, not generative AI.

Why an image upload can fail

Typical causes include mismatched extension/format, dimensions that are too small or too large, excess file size, and the wrong image aspect ratio. File Doctor compares measurable properties and allows you to adjust the output before downloading.

For example, an original 771 × 1080 JPEG can be cropped to exactly 600 × 600 pixels and compressed below a specified KB limit when possible. Cropping may cut content; increasing pixel count does not create authentic detail.