PDFProtect 2.3
PDFProtect is a stand-alone, fully automatic software application that can change, add, or remove security level standards in the PDF documents. To change current document encryption settings, simply select the PDF file or folder with PDF files, set new protection options and push the "Start" button.

Ap PDF Password Recovery command line 3.1
PDF Password Recovery can be used to decrypt protected Adobe Acrobat PDF files, which have"owner"password set, preventing the file from editing (changing), printing, selecting text and graphics (and copying them into the Clipboard), or adding/changing annotations and form fields. Decryption is being done instantly. Decrypted file can be opened in any PDF viewer (e.g. Adobe Acrobat Reader) without any restrictions.(command line)

pdf-Recover Professional 4.x
You cannot print a PDF file? You cannot copy & paste texts from a PDF? You cannot edit a PDF document? Then your file is protected with a "master password"! pdf-Recover Professional is the leading software solution to disable restricted operations on PDF files instantly. It decrypts protected Adobe Acrobat PDF forms & files, which have "master" password set and removes the security settings with one click.

Product Key Explorer 2.0.9
Product Key Explorer displays product key for Windows, MS Office, SQL Server and 500 other software products installed on your local or remote network computers. In order to install or reinstall Microsoft Office, Windows, or other commercial software, you must have access to a product key (CD Key) for that product. Product Key Explorer retrieves product keys and allows to protect your company from having pirated software on your network.