Six different Digital Proofing Systems from three different techniques have been evaluated as to technique, printing quality, economy and usability. Digital proof from two paper qualities, coated and uncoated, has been compared with references printed in offset, to see how good they match each other. Only two Proofing Systems manage to print on reference paper. The other Proofing Systems use special paper for digital proof. Measurements and visuell judgement show that the Digital Proofing Systems visualise reference pictures with quite good quality. Proof optimised for coated paper visualise the colours with good result. Proof optimised for uncoated paper shows higher quality than the references, which depends on the surface of the proofing paper. Comparison between reference paper and proofing paper has taken place as to differences in colour and paper quality. The Digital Proofing Systems are fully automatic, which demand a quite comprised education for correct handling. The purchase price and printing costs vary considerably between the Proofing Systems.