Application for flash drives that displays hidden files and performs backups.
Free utility with multiple features to work with PDF files.
Utility for working with PDF documents with various features.

Utility for PDF documents that allows you to merge, split, group, protect, clean metadata, insert and extract pages.
Utility capable of locating identical or similar images, including those rotated, mirrored, or negative.
Multifunctional software that facilitates the manipulation and optimization of PDF files.