User guide

Manipulating Images 103
Changing image size
The Image Size dialog lets you specify a new size for the whole image, in terms
of its screen dimensions and/or printed dimensions.
To resize the whole image:
1. Choose Image Size... from the Image menu.
2. To specify just the printed dimensions, uncheck Resize layers. Check the
box to link the Pixel Size (screen) settings to the Print Size or Resolution
settings.
3. To retain the current image proportions, check Maintain aspect ratio.
Uncheck the box to alter the dimensions independently.
4. If adjusting screen dimensions:
Select a preferred scale (either "Pixels" or "Percent") in the drop-down
list.
Select a resampling method. As a rule, use Nearest Pixel for hard-edge
images, Bilinear Interpolation when shrinking photos, Bicubic
Interpolation when enlarging photos, and Lanczos3 Window when
best quality results are expected.
5. If adjusting printed dimensions, select your preferred units of measurement
and resolution. The pixel size will automatically alter with print size
adjustment.
6. Enter the new values and click OK.
Changing canvas size
PhotoPlus provides several ways of changing the canvas size that was originally
chosen when creating a new image (see p. 18). If you just want to reduce the
canvas area, you can use the Crop Tool (see Cropping an image on p. 104) or
the Image>Crop to Selection command. To either enlarge or reduce the canvas,
the Image>Canvas Size... command provides a dialog that lets you specify
where pixels should be added or subtracted.