User Guide

Chapter 5: Painting And Image Editing
Add Subtract Difference
Image proxies
Proxies are low-resolution images you can use in Canvas documents. A proxy is a placeholder that is
linked to an original image. The original high-resolution image is stored in a Canvas Image File on
disk.
Using proxies
Proxies can significantly reduce the time required to redraw the screen while you work. Also, a
Canvas document that contains proxies requires much less disk storage space than one containing
high-resolution images (although the space required to store the document and the linked image files
is approximately the same as for the document containing high-resolution images).
Proxies are most useful for conserving time and memory when you use large, high-
resolution color images in documents.
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