I only created .pdf document on Adobe Acrobat. I’ve still no any good idea what to do. This day I’ve as usually opened .pdf, it has only demonstrated me white screen. Probably someone knows, I hope, what can be a proper solution.
1. Right click on any PDF document -> Get Info
2. Click on Open with entry on the get info dialog
3. In the Application dropdown locate to your installed copy of Acrobat and select Acrobat application
4. Once you have selected Acrobat click the "Change All button below the drop down"
5. Click Continue on the user confirmation dialog
6. Quit the Get Info window
Sometimes even manuals and guides can't assist. I usually repair damaged pdf with the help of a cup of coffee, Google, and my brain. That's the things I have for now