When comparing GrafX2 vs Paint Shop Pro, the Slant community recommends GrafX2 for most people. In the question“What are the best pixel art / sprite editors?” GrafX2 is ranked 3rd while Paint Shop Pro is ranked 23rd. The most important reason people chose GrafX2 is:
GrafX2 is scriptable using the Lua language, which can be used to automate tasks and add new functionality to it. The script library features advanced color reduction and enhancement tools, [palette analysis](http://eab.abime.net/showthread.php?t=76519), and much more.
Ranked in these QuestionsQuestion Ranking
Pro Scriptable using Lua
GrafX2 is scriptable using the Lua language, which can be used to automate tasks and add new functionality to it. The script library features advanced color reduction and enhancement tools, palette analysis, and much more.
Pro Supports many file formats
GrafX2 supports many file formats, including the popular gif and png, but also importing and exporting from deluxe paint, degas elite, and various other editors using custom formats.
Pro Palette color cycling
GraphX2 being based on older 256 bitmap software has inherited some tricks that modern pixel editors do not have . One of them being the ability to cycle color palette and produce animations and effects with it.
Pro Free, open source, and cross-platform
GrafX2 is totally free to use, copy, and modify. It's available on Windows, Linux, Mac OS X, Haiku, AROS, MorphOS, SkyOS, Syllable, Mint, and a few more systems. Basically anything is supported by the SDL library.
Pro Very large number of tools and effects
Pro Supports tileset addition and extraction
Pro Has a great palette tool
You can create gradients from one color to another, work in either RGB or HSL color space, save and load palettes, sort and organize palettes, and even work on "color cycling" images.
Pro Supports animations
The program has a basic support for animation using frames in newer versions. Graphics can be cloned and copied between frames and changed slightly.
See here how to animate with GrapfX2 https://www.youtube.com/watch?v=Gnq6zBZOqoM
Pro Has a customizable UI with themes support
Theme UI style can easily be changed from settings including buttons and colors.
Pro Drawing constraint mode for vintage 8bits machine
The program is able to enforce the pixel constraints of old machines (C64, ZX Spectrum, Apple II, Game Boy Color, etc.)
For example, in ZX Spectrum mode, only 2 different colors can be used in a 8x8 pixel block.
Pro Custom palettes available
You can work with a pre-defined number of color palettes, save and load custom palettes, and access several modes to reduce the number of colors on a picture.
Pro Several file formats supported
Paint Shop Pro can read and write images in several file formats: PCX, PNG, GIF, CDR, PSD, JPG, EPS, TIF, TGA, WMF... even RAW.
Pro Offers informative tutorials
There are quite a few informative tutorial videos available for users on Paint Shop's website.
Con Dated look and feel
It looks like it was never supposed to be used in the modern world.
Con Lack of modern features
Some modern features that are necessary to do pixel art creation for game dev work are lacking.
Con Windows only
Paint Shop Pro is available only in Windows.
Con PSP8 has a relatively slow startup
PSP 7 worked better than PSP 8 in terms of startup speed. There are still versions around somewhere, if you look hard enough.
Con No more updates available
Paint Shop Pro 7 was pretty stable, but its creator JASC Studio is no more. It has since been acquired by Corel, and rather than improve Paint Shop Pro, they have killed it.
Con Windows Vista and upwards have limited support for colors
The main issue with PSP is that Windows is forced to "change" your window's color scheme while the software is still running. This causes screen flickers and odd color effects.