PhotoPlus X6 User Guide - Serif

Creating and editing lines
Painting, Drawing, and Text 147
Lines can be drawn by using dedicated tools from the Tools toolbar's Line Tools
flyout.
The Line Tool produces an anti-aliased straight line in PhotoPlus,
which is just a very thin shape. The line can be of varying Weight
(thickness) and can be constrained to 15-degree increments, by
holding down the Shift key as you drag.
The Freehand Pen Tool, as its name implies, lets you draw a squiggly
line made up of consecutive line segments and nodes (each new
segment starting from another’s end node), which can be attached
back to itself to create a closed shape. Use the Smoothness setting on
the context toolbar to even out ragged contours automatically.
The Pen Tool can produce complex combination curves (and shapes)
in a highly controlled way.
Each tool's supporting context toolbar lets you create the line on
a shape layer or as a path. The Line Tool can also be used to create a filled
bitmap directly. Additionally, combination buttons let you add the line to its
own layer (or path), and can also be used to control how the new line interacts
with existing shapes on the layer.
Besides being useful with QuickShapes, the Node Edit and Shape Edit tools
really come into their own when editing lines.