Flippingbook3D Free PDF to Text - Version 2.1 Flippingbook3D Free PDF to Text is easy-to-use, fast software to convert PDF documents to the popular Text files format. There has Batch Convert mode, Command Line Mode, and Hot Directories Mode provided in Flippingbook3D Free PDF to Text for you to quickly convert PDF to Text file. It is standalone software and it doesn't need any software such as Adobe Acrobat, Microsoft Office.