Control the Image Size and Resolution When Importing a Picture
When you drop a picture that contains size information, it's normally imported at its original size, even though the picture may have a higher resolution than the screen. For instance, if you import a picture that's 0.5 inches square at 600 dpi, the original has 300 dots per side. When you import it to Windows, which normally has a screen resolution of 96 dpi, the picture will still be 0.5 inches square, so will have 48 dots per side.
To import the picture at its full original detail, hold the Alt key (Windows) or Option key (Mac) when you drop it. In the example, the picture will appear in Sketchpad with 300 dots per side, and will measure 300/96 = 3.125 inches on a side.作者: rzj99927 时间: 2011-4-27 22:28