Tool that tests the real size of pendrives and memory cards.
Copy large amounts of files to other directories quickly.
Utility that allows you to calculate the MD5/SHA1/CRC32 hashes of your files.
Tool that identifies and deletes duplicate files.
Effective and easy-to-use disk defragmenter.

Utility for PDF documents that allows you to merge, split, group, protect, clean metadata, insert and extract pages.