Guaranteed PDF Decrypter (GuaPDF) 3.2
his is a GUI utility which allows you to instantly remove various operation restrictions on PDF files, such as printing and editing (even with 128 or 256 bit key, Acrobat 8.x-10.x AES encryption and compressed files supported). It also can decrypt PDF files with password for opening (40 bit key only). Supports dual/quad-core computers and distributed processing as well as GPU acceleration on NVIDIA and ATI/AMD card using OpenCL technology.