I am new to Essentials (7) and found (ugh) that I couldn't save an image as anything other than a RIF file. I've spent time with Help (ha!) who had nothing to suggest but ask if I had Essentials 4 also on my computer.
After a lot of searching and Googling I came across a solution - take a look at PDF24 (free). Its a 2 step process, but simple and it WORKS! I'm guessing (but haven't tried) that I could convert the PDF to a JPG or TIFF, etc and open in PS or LR or ?? God Luck.