content: I keep getting the same air on android S20 ultra Unable to access file. Make the file name shorter. It was working fine and then all the sudden a year after getting this phone I started getting the error message making the app completely unusable. There are no suitable online solutions found and Adobe does not provide any support options for free apps. Why would I ever buy a premium app if your reader wont even work and you wont support it. Worthless app. Dont waste your time or money.