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ADOBE PHOTOSHOP CS2
User Guide
A
B
C
Pixel dimensions equal document (output) size times resolution.
A.
Original dimensions and resolution
B.
Decreasing the resolution without changing pixel dimensions (no resampling)
C.
Decreasing the
resolution at same document size decreases pixel dimensions (resampling).
In Photoshop, you can change the resolution of an image. In ImageReady, the resolution of images is always 72 ppi,
to optimize the images for online media.
Example of an image at 72 ppi and 300 ppi
When printed, an image with a high resolution contains more, and therefore smaller, pixels than an image with a low
resolution. Higher-resolution images can reproduce greater detail and subtler color transitions than lower-resolution
images because of the density of the pixels in the images. High-quality images often look good at any print size.
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