PDF to Text - Free bulk conversion of PDF documents to plain text files, which can be opened by any text editor.
Tesseract - Tesseract is an optical character recognition engine for various operating systems
Zamzar - Free conversion online of many type of documents (images, text, video, audio...
youconvertit - Youconvertit - Free Online Files Converter, convert any type of file formats, convert media, images, audio, video. All file converted can be shared for free.
Online Convert - Convert files like images, video, documents, audio and more to other formats with this free and fast online converter.
kdiff3 - KDiff3 is a file and directory diff and merge tool which compares and merges two or three text...