Bear in mind that any GIF file has a limited color palette by definition. GIF files only support a maximum of 256 colors, so when porting frame images from one program or format to another, keep this in mind. If you start out with a true color image, you can always generate a GIF file from it. This will ensure that all the colors will be available to create the palette. However, if the frames are GIF files to begin with, the resulting animation will not have any more colors than the ones it started with.
Image compression is another factor affecting quality.
GIF uses a lossless compression scheme, so if you're not concerned about a limit of 256 colors then at least image quality can be maintained when using the GIF format to port animations. Porting an Image Sequence in One Step Not all programs support the import or export of an entire image sequence. This can be a huge time saver and should always be taken into consideration. If faced with a choice whether to save or import images one at a time or all at once, the choice should be obvious. The next tutorial will detail which programs do and which ones don't.