>>A client subscribes to Adobe suite (Photoshop, Illustrator, Dreamweaver, Lightroom, etc...) . They pay a lot of money for this each year. Does anyone recommend alternatives which are effectively as good, or good enough. for non-professional users?
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>What are the needs of the client?

Michel, basically this is a school and they use these tools for their students in art, computer-tech, etc. The school licensing fees are very high. But these are not professional users and I wonder whether free tools would suffice just as well ?