Synopsis: BleachBit quickly frees disk space, removes hidden junk, and easily guards your privacy. Erase cache, delete cookies, clear Internet history, remove unused localizations, shred logs, and delete temporary files. Designed for Linux and Windows systems, it wipes clean 70 applications including Firefox, Internet Explorer, Flash, Google Chrome, Opera, Safari, Adobe Reader, APT, and more.

Synopsis: Simpo PDF to Text is a free yet professional PDF to Text converter, with which you could convert your PDF documents to Text. It’s a standalone application, Adobe® Acrobat or Adobe® Reader software is NOT required. Simpo PDF to Text processes at high speed and you can convert PDF to text files in a batch. What you have to do is to import several PDF files at a time and click Convert, and then you will get DOS/Windows, UNIX, or Mac compatible Text Files.

Note: official website has gone crippleware (two pages converted maximum). Download link points to the last free, fully functional version.

Synopsis: PDF2EXE converts any PDF file to EXE, making PDF readable on any computer without a PDF reader such as Adobe Reader or Adobe Acrobat software installed. The conversion from PDF to EXE preserves the look and feel of the original document and includes optional compression. Note that PDF2EXE is based on Cool PDF Reader, which has attracted some comments disparaging the quality of its rendering engine. If you don't like Cool PDF Reader, you will probably want to give this a miss as well.

PDF2EXE also contains security features such as encryption of the shared PDF to help prevent modification, as well as disabling printing and image conversion.