Legacy ImageMagick Discussions Archive

I stand corrected, +set date:modified removed the modified property from the file, and kept the create date, so changing the modify date still did not work. I ended up using +set date:create +set date:modify, which removes both dates from the file (which in theory the * should do)

After some searching I found the following (source http://www.imagemagick.org/Usage/formats/#png_write ) Normally if you write the same image separately to two PNG files the two files will not compare to be the same. That is because IM will also store an image creation date within the file. JPEG ...

I'm trying to resize a set PNG files from a web source, and am depending on the hashes of the resulting files to be the same if the original file has not changed, while this is the case if I convert to a JPG file, it is not so for PNG files. When I copied the files to a different system for a test ...