PDF Corrupted? How Can You Easily Repair Your Corrupted File
PDF is the most commonly used document format. It is used in offices, educational institutions, and software houses, and every other person uses it for their work. PDF has become so popular because it is a secure document format; you cannot make changes to it directly without an editor. If someone does some editing, you can use the PDF editor's Compare PDF feature to compare original and edited PDF files. PDF files do not change when opened on another device, they remain consistent, and these files are not, so memory taking. Finding that your PDF file is corrupted is something nobody want...
Source: phandroid.com