New Issue with Editing my Blogs in Acrobat PDF format

I convert my blogs, written on the TravelArk blog site, to PDF files to create blog books. To make my PDF files, I go into my published blog chapter, then Print, then Save as PDF. I usually have to tweak my ratios to enable pictures to fit and make the layout as good as possible. I have published ten books. Trying to tweak them is not always easy, but at least it has been possible.  

This system was working fine until a few days ago.  As far as I know, nothing has changed with new updates, etc.  Now, if I try to edit my converted PDF (in EDIT), the cursor is BELOW the text. It will not highlight the text I want, nor will it allow me to make even minor changes without the entire "text box"  going into a seizure and doubling over text, changing spacing, paragraphs etc. A total mess. 

Can anyone offer any suggestions? I've looked up Adoble FAQ's on editing in PDF and I'm now totally confused.  I'd dearly love to get this blog published as soon as I can. Help,thank you!