using Adobe Acrobat Pro DC, I save pdf documents from emails to folders on my C Drive. I have to always browse to find the right folder as I do not want to store in my windows Downloads folder. Ideally there would be a setting to default the Save As to the same folder as the last saved pdf. This is because when saving many pdf documents they often will go into the same folder as the last pdf saved. At least this way around 50% of times, the folder will be the correct one. If people always use the same folder then it will be correct 100%.