The command streamlines PDF export process. At startup, the current view opens in the default PDF viewer.
The paper size is adjusted automatically according to the size of the current view.
With "Open in PDF" command, you don't have to print or send large drawings to suppliers. By selecting one or more elements, you can choose which part of the view is print. More in Active selection print.
If file security is important to you, you will appreciate the automatic security of the generated file, which is available in settings.