Hello,
Click one book cover,then downloading will begin.
Please don't click on anything when downloading.
And, it may takes time to finish the downloading process, so please be patient.
Once downloading is over, it will tell you OK, and see a output path like,
C:\Users\username\Documents\Epubor VitalSource Downloader

Hello,
Hi there, I've registered your product and followed to your instructions to start the Epubor app and login to Vitalsource and clicked on the cover of my ebook, which has opened up. but I can't save it as a PDF, could you please help.