Software in vector graphic are completely diffrent than raster graphic programs like simple paint or more professional photoshop. Forget about these programs.There is no way to make proper design to be cut by decal maker.
To cut decals we need programs sach as corelDraw or inkscape to make nice desing. And for cut I use artcut2009. There is a lot of software out there on market but this set of corelDraw and artcut2009 is suits perfect for me.

Some of plotters can cut directly from corelDraw. For that you need correct plugin for corel. Most of them are made by maker of particular cuting plotter sach as graphitec or ukcutter.

Here are some link to softwares what i use. All of them are licenseda and payed once for life time licence  .

Check out links below. Some of them have free licence for personal use.
Currently artcut dosen’t got webpage. But this product can be found on ebay for 20gbp.
Alot of good software you can find on