It offers best compression on the market due to specialized compressors for pdf/docx/jpeg/mp3/exe/text/image/sound formats. PA format has two modes - Optimized Strong and Optimized Fast.
PowerArchiver 64-bit version is optimized for maximum speed and performance, and will fully utilize your memory and CPU, by using all available cores. PA format with strongest/fastest compression.
PowerArchiver is a professional 64-bit/32-bit compression utility, w/support for over 60 formats and an exclusive Advanced Codec Pack.