In PS, you have to enter your display's 'Screen Resolution' or pixel density (in Pixels Per Inch) manually in the preferences to get this type of scaling to work properly when viewing the document (see screenshot).

It would appear that AP is aware of my display's pixel density (screen resolution) and can do the scaling automatically. On my display, if I take a ruler and physically measure the dimension of the document on the display, it measures 6.4 inches, or 1920 pixels / 300 pixels per inch.

The document should be displayed smaller than the previous. The view should be the same, because the zoom is based on the pixel dimensions - NOTE, that it will likely be twice as big on a Retina display because of the way some apps treat 1:1 pixels on a Retina display.Ĥ) Use the shortcut CMD-8 to view in Actual Size. ALSO: specify a value for 'DPI' - try 300 to see if what I am about to describe is what you experience.Ģ) When the new document opens, view it at 100% (CMD-1) - the document should be as wide as your display width, because that is the zoom based on pixel values.ģ) Use the shortcut CMD-9 to view in Pixel Size.

For example, my display is 1920 pixels wide, so I specify 1920 in the width field of the new document dialog. AP understands units, or physical dimensions of the document based on its pixel dimensions and the specified pixel density (pixels per inch, for example).ġ) make a new blank document that is the width of your display, in pixels.

Affinity photo vs photoshop 2016