Selecting the filename text case (lower or upper) in JCE profile settings seems not to apply for the filename extension.
Many digi cams providing filename .JPG and it would be very convenient to have that changed to .jpg at uploading when the filename itself is corrected to lower and dashes.
Now from File Name.JPG the result is file-name.JPG; much better would be file-name.jpg!
Does anyone have an idea? (except manually changing upfront..)