UPLOAD ERROR · FORMAT REQUIRED

JPG Required for Upload

Create a JPEG submission copy without simply renaming the original file extension.

ENGINE-ENFORCED · MAY FAIL CLEARLYBatch Img Tools enforces the configured deterministic constraints. It does not promise every combination is mathematically reachable; when constraints conflict, it fails clearly instead of silently changing another requested constraint.
FixConvert format
OutputJPG/JPEG
BatchMultiple files
IMAGE TOOLReady when you are
Standard engineCore processing local
SAVED SETUPUnsaved setup
2

Settings

Adjust only what you need

3
READY TO EXPORT0 sources × 0 outputs = 0 filesChoose images to begin

Fix the format first, then validate pixels and KB.

An unsupported-format error is different from a file-size or dimension error. Convert to a genuine JPEG first, then apply any separate pixel or KB rules from the receiving form.

What you can do

  • Real JPEG encoding
  • Batch conversion
  • Keep the original file
  • Add KB/dimension rules if needed

One rule. Every file. One download.

Add your images above and run the whole batch in one pass — free, private, and exported as a single ZIP.

Explore more batch tools →