User's Manual

179
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, youcan change theresolutionofanimage.InImageReady, theresolutionofimagesisalways72ppi,
to optimize the images for online media.
Example of an image at 72 ppi and 300 ppi
When printed, an imagewithahigh resolution contains more,and thereforesmaller,pixelsthananimage with alow
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.