I mean something like a graphical interface / front end for Imagemagick or a simpler application that would allow converting/extracting images through the interface (not in the Terminal).
After updating to Precise had a few times the following mishap: when I try to convert to pdf many (100, 200) jpegs or pngs, my system gets completely stuck and need hard reboot. Or, more fortunately, ...
I know convert changes from a image format to another. mogrify can resize and scale multiple images also. But HOW can i modify all images inside a directory, including the sub-directories. Like for ...