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Canvas 12 User Guide - ACDSee

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<strong>Canvas</strong> <strong>12</strong> <strong>User</strong> <strong>Guide</strong><br />

The Mode option is used for rendering all the effects applied to an object; e.g., if you choose<br />

Grayscale, the object and effects applied to it will appear in gray shades on screen and when the<br />

object is printed or exported.<br />

Select a mode that is appropriate for the medium you use. RGB is best for Web graphics, screen<br />

display, and output to a film recorder. CMYK is appropriate for process-color printing and color<br />

separations for commercial printing. Grayscale is appropriate for black-and-white publishing.<br />

None is available in the mode menu only when the selected object is a lens that has no effects applied<br />

to it; however, the lens can have a magnification value and remote viewpoint.<br />

If you select None, the lens object is not rendered for printing or export. This can be more efficient<br />

and produce better output when a lens displays vector objects or high-resolution images. This option<br />

is useful if you use lenses without effects to show close-ups or call-outs of diagrams.<br />

Resolution<br />

Enter the resolution in ppi for rendering SpriteEffects. A high resolution makes effects appear<br />

smoother; however, higher resolution requires more memory and slows down printing.<br />

For Web graphics and screen display, 72 ppi is recommended. For office printing, 100 to 200 ppi is<br />

usually sufficient. For commercial printing, a range of 150 to 300 ppi is recommended for halftone<br />

images, depending on the paper and press requirements.<br />

Anti-Alias<br />

Select this option if you want to smooth the edges of objects in the rendering of SpriteEffects.<br />

Selections masks<br />

In the Effects list, a symbol to the left of each effect name shows the state of the selection mask for<br />

the effect. You can click the symbol to toggle the mask on ( ) and off ( ).<br />

An active selection mask defines a selection for an effect. The selection will include objects, not<br />

empty space. The mask can preserve transparent areas, such as empty space in a group object, and<br />

space between text characters.<br />

When the selection mask is on, the effect is based on the selection area. When the selection mask is<br />

off, the effect is based on the entire bounding box area; e.g., if you apply the Add Noise command to<br />

a circle, the selection includes only the circle, so the noise affects only the circle if the mask is on. If<br />

the mask is off, the noise appears in the entire bounding box area.<br />

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