We have migrated all of our projects from Sketch/InVision. We LOVE it so far but there are a few things in our workflow we really miss from InVision that helped stakeholder collaboration and communication efforts.
InVision allows us to do several things with PDFs (seen in screenshots above)
A few favorites:
Selecting a subset of screens to export. Allowing us to do this helps with highlighting certain parts of the project and sending to our legal or regulatory teams for example.
Exporting WITH comments intact. We have localization reviews and need to send comments with screens to linguists.