The Unarchiver - Unzip RAR ZIP is a very easy-to-use app that allows you to decompress dozens of archive formats. such as: Rar, Zip, 7z, Tar, Xz, Iso, Lha, bz2, Lzh, cab, cpio, jar, exe, pkg, dms, tbz, swf, Gzip, Bzip2… and it can also compress and encrypt any files to make private files more secure.

CHM Viewer Star is a specialized app which aims at CHM files reader. You can use it to read CHM files conveniently, fast and safely.

PDF Squeezer - PDF Toolbox is designed for operating PDF files and contains almost all operations you can imagine, such as: compress, merge, split, extract, insert, extract image, convert image, extract text, sequence, encrypt, etc. If you are worried about operating PDF files, download it, it’s so fantastic!

PDF Merge and PDF Splitter + is a very easy-to-use app that allows you to quickly merge multiple PDFs into one PDF or split specified pages into a new PDF.