After a few months of using this program, I've found that this is programs the best, or one of the best compression programs available.. The batch processing saves me so much time, when I have a complete concert band score consisting of 30 or more parts to compress. One of the best features of the program is the ability to easily compare the quality of the original file to the compressed version before you save the file. PDF Squeezer is now one of my favourite programs, right up there with VueScan, Graphic Converter, and PDF Expert, which I use almost every day in my reconstruction of old music.