Some software vendors offer a trial or demo version of their product. This type of license allows potential customers to use the software for free for a limited period, helping them decide if it's the right solution for their needs.
This is the safest way to access a "free PrintFab license" temporarily. printfab license key
If the cost of a PrintFab license is too high for you right now, you have several better options than risking malware: Some software vendors offer a trial or demo