Unable to save pdf in Acrobat folder to desktop

Hello, there is a pdf file inside my Adobe Acrobat folder that I want to save to my desktop. After I click "Control S" to save to computer and do a search, the file isn't on my computer. So, then I go to the file to try to select all the text and paste it into a Word document. But, after selecting all the text, only the top part stays highlighted. AI says it can't help me. After 45 minutes using Google, Bing and Acrobat, to no avail, I am hoping someone here can help me. Thank you in advance.