Root Explorer (RE for short) is an extremely powerful must-have file manager for rooted Android OS (requires root permission to work), developed by Speed Software from United Kingdom. It enables users to access the whole Android file system (even including any hidden system data folders) and easily to perform operations with the highest authority required.
For those PDF files which are protected with password, i.e.: not permitted to edit, change, print, copy, add annotations, etc. At this time, we can turn to VeryPDF PDF Password Remover, with its help we can unlock these limitations easily by removing the password of PDF file.
Is it possible for you to have such questions when installing an application in your Android OS: Why does a local application require so many permissions such as Internet connection, read/write/delete contacts information or SMS, even turn on the camera or microphone to record, most of which are not relevant at all? We do want to remove these permissions, but the problem is, we have to continue to setup, there is no choice.