176 Pictures, Lines, and Shapes
• For grayscale photographic images, scan using grayscales and save
as a grayscale TIFF file. If you have a color scanner, save a color
TIFF. You can resize these images and still maintain reasonable
quality, provided you don't make them significantly larger than the
original. In general, the number of grayscales or colors is a more
important issue than the actual resolution (dpi).
• If you want your image to use lossless compression, either scan as
PNG or as TIF and then convert it to PNG within your publication.
• To obtain images of smaller file sizes, scan as JPG at 200dpi at the
highest quality.
• Depending on your scanner software, your may be able to perform
initial adjustments right at the source (e.g., adjustment of levels).
Often you can de-screen images to eliminate possible moiré patterns
(interference between the regular dot patterns in printed images and
the scanner’s path). If your scanner software doesn’t provide de-
screening, try using the PhotoLab's Gaussian Blur filter to remove
moiré.
Drawing and editing lines
PagePlus provides Pencil, Straight Line, Pen, and QuickShape tools for
creating simple graphics.
Using the line tools, you can draw single lines, connect line segments together,
or join line ends to close the line, creating a shape (see Drawing and editing
shapes on p. 182 for details). Use the Pointer Tool and the Curve context toolbar
to resize or reshape lines once you've drawn them. The context toolbar appears
automatically when you select a line or closed shape, and provides a variety of
adjustment controls—including adding/deleting nodes and manipulation of
curves.
