From the next dialog box, choose Switch anyway to set another app as default PDF viewer. You’ll have to choose another app from the list.Ħ.
And then choose another app to set it as a default PDF reader.ĥ. You now have to click on the current default PDF reader app. It will help you change the default PDF viewer app for further PDF documents.Ĥ.
Note: Here, you can also choose to set defaults by app.