On my website, I create images at 69% quality with the image GD library. It attaches the following meta-tag into each image I create:
"CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 69"
Because my website has several hundred thousand JPEG images, people would be downloading at least 30MB of nonsense just to see every pic.
I want to somehow successfully erase this metatag and all other unnecessary junk in the JPEG files without resorting to any more libraries. Even some binary solution would be good if I can find one.