The command bars, buttons and fonts are twice the size of those in Acrobat Pro, they take up too much space and restrict the amount of screen displaying the document -- how can I reduce to normal size (ie same as Acrobat Pro)? NB: this is not a 'zoom' issue! It must be due to Acrobat Reader not being able to automatically scale the window size for the larger monitor size. I am using Windows 10. BTW the same thing happens with Office 365 windows, but ONLY if File Explorer is set to preview documents in the Preview Pane, which currently it is not. In the image below, the top window is Acrobat Pro, the bottom one is Acrobat Reader DC, in a single screenshot taken on the 1920 x 1080 pixel 24-inch external monitor. ... View more