Is there a way to prevent files being downloaded into the Downloads folder on a mac such as when I open a pdf file from the browser instead of downloading it? To explain what I mean, on Windows when you click 'Open' when the browser asks what to do with a file, the file gets downloaded to a temp folder. On Mac it gets downloaded to the Downloads folder, in effect creating two copies if I choose to save the file later to a different folder. Since you can't move files on the mac, the end result is a very cluttered Downloads folder and no way of knowing if a certain file is saved elsewhere? Is there a way to change this behaviour, say not to have the file downloaded or to have it automatically deleted?

Is there a way to prevent files being downloaded into the Downloads folder on a Mac such as when I open a PDF file from the browser instead of downloading it? 

To explain what I mean, on Windows when you click 'Open' when the browser asks what to do with a file, the file gets downloaded to a temp folder. 

On Mac it gets downloaded to the Downloads folder, in effect creating two copies if I choose to save the file later to a different folder. Since you can't move files on the Mac, the end result is a very cluttered Downloads folder and no way of knowing if a certain file is saved elsewhere? 

Is there a way to change this behaviour, say not to have the file downloaded or to have it automatically deleted?