Project administrators can set a default PDF file viewer which can apply to any folder and include subfolders. The default viewer will apply to the whole project, however members can switch to a different viewer when they open a PDF file.
A project administrator needs to:
Click the More menu of the relevant folder.
Hover over More and click PDF viewer settings
You can choose either the ACC viewer or Browser as the default viewer for PDF files.
Select whether the default viewer is going to Apply to all subfolders.
Members can choose to switch from the default viewer when they open a specific PDF file.
Click the More menu to the right of the relevant file in the files list.
Your viewer options depend on the current default setting:
When you close the PDF file, the default viewer setting will still apply.