"You can download source code for gLabels from its SourceForge
project page, but most Linux distributions include it in their
package management systems — the gLabels site maintains a
list of such distros on the download page. gLabels uses GTK and is
designed to work with the GNOME desktop environment, but it runs
just as well under KDE.
"When you first launch gLabels, most of the main window will be
grayed-out; to get started you must first create a new label file.
Click on the 'New' icon on the toolbar. This opens the template
selector, from which you can choose the type of media you want to
work with — everything from address labels to CD labels to
round labels to full-sheets to business cards are supported;
gLabels includes hundreds of templates. To simplify selecting the
right template, you can sort by brand name, page size, and media
category using drop-down boxes at the top of the window."