Signing Image File always creates thumbnail in C2PA-Manifest and results in big file size

[nitrat7]

Signing Image File always create thumbnail and results in big file size for signed image.

tested with c2patool 0.9.12

Creation of thumbnail should to be optional and if enabled, you should define size (width/height) by your own

Source JPG 653kBytes
Signed JPG 838kBytes and thumbnail 165kBytes

e.g.

./c2patool source.jpg -m test.json  -o ext_dest.jpg

(test.json same as https://github.com/contentauth/c2patool/blob/main/sample/test.json and self signed certs)