CACHATTO PDF Reader is an PDF reading application specially developed for CACHATTO SecureBrowser.The installed application will not be displayed in the application launcher.* Functions- Can now add annotations (highlighting, underlining, strike-through, ink color) to files that have been temporarily downloaded from e-mail, file servers, the portal, etc. Edited files can be attached to emails and sent. The downloaded files are deleted from the device after logging out of CACHATTO.* Operating Environment - Android 4.0 or above- The dialog requesting to update certain applications in Android 9 has been eliminated.