Saving won't update original file, instead forces you to create a new file.
I am currently using Adobe Acrobat Reader DC (17.012.20098) on Windows 10 Home. Both are completely updated as of 9/23/17.
When I open a pdf and edit it using comments or highlights etc, I have difficulty saving. When I hit the save icon (or go through File -> Save), it won't update the original pdf. Instead it makes it go through the save as process and create a new file altogether. I can save over the original file, but it's kinda annoying to have to go through this every time.
