GIMP/flyer
GIMP
https://www.gnu.org/software/gimp/
GNU Image Manipulation Program.
The GNU Image Manipulation Program is a powerful image editing program, and commonly used for photo retouching, image composition, and general graphic design work.
It can be used as a simple paint program, an expert quality photo retouching program, an online batch processing system, a mass production image renderer, an image format converter, etc. GIMP also comes with extensive documentation for both users and programmers, including a manual, tutorials, examples of various features, links to other GIMP-related sites and an extensive list of plug-ins.
Extension or Plugin
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.
The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.