Apple Compressor 3 - Manual (Page 288)

• Up to 428x240: Scales the output dimensions to not exceed a 428 x 240 frame size
while maintaining the original aspect ratio.
• Up to 214x120: Scales the output dimensions to not exceed a 214 x 120 frame size
while maintaining the original aspect ratio.
• 320x240: Defines an output dimension of exactly 320 x 240.
• 640x480: Defines an output dimension of exactly 640 x 480.
• 720x480: Defines an output dimension of exactly 720 x 480.
• 720x486: Defines an output dimension of exactly 720 x 486.
• 1280x720: Defines an output dimension of exactly 1280 x 720.
• 1920x1080: Defines an output dimension of exactly 1920 x 1080.
• Custom: This is a manually created setting. Enter whichever dimensions suit your
needs in the Width and Height fields. This setting has no constraint on the aspect
ratio.
• Custom (4:3): This manual setting is constrained to the 4:3 aspect ratio. Enter a value
in either the Width or the Height field, and the other value is entered automatically.
• Custom (16:9): This manual setting is constrained to the 16:9 aspect ratio. Enter a
value in either the Width or the Height field, and the other value is entered
automatically.
• Custom (2.35:1): This manual setting is constrained to the 2.35:1 aspect ratio. Enter
a value in either the Width or the Height field, and the other value is entered
automatically.
• Pixel Aspect field: You can choose Custom from the Pixel Aspect pop-up menu and
enter any value in this field. The pixel aspect ratio refers to the shape of the pixels in a
digital image. This is especially important when using some filters. For example, if the
graphic you use for the Watermark filter uses a circle and you want to be sure it still
looks like a circle when finished (as opposed to an oval), you must choose the pixel
aspect setting that matches your output format.
288 Chapter 24 Adding Geometry Settings