The PDF filetype was created by Dr John Warnock, Adobe co-founder, who said at the time, "These documents should be viewable on any display and should be printable on any modern printers.
If Windows 11 Widgets are not opening, working, showing, signing in, or are greyed out and blank, then one of these suggestions is sure to fix the issue for you: Re-enable Widgets on Taskbar Log ...
If you see white blank icons on Windows 10 Desktop, then it’s because the OS cannot load the icons attached to those programs and files. Windows maintains a database of icons which is used often ...