By John Flanagan
Revit 2020 introduced the ability to link a PDF inside Revit. You will find the tool on the Insert tab.
The PDF will be imported as a 2D object in the current view only. You have to specify which page you want to import each time you select a PDF file. You can also specify a DPI import value.
If the PDF contains vector lines, you can use the Enable Snap feature to interact with the lines using pick lines.
Once the snaps are activated, you can use the “pick walls” tool to use the PDF as a reference to create new walls and other model elements.
Go to the Manage Images menu to reload, relink or make any change to your PDF link.
Note: You can't import a password-protected PDF file. Remove the password from the PDF file before you import it.