Traditional proofing digital proofing

The color of the printing effect is poor, the color difference is good, and the color difference is small.

Image reproduction performance Image resolution is good (when overprinting is accurate)

Sample consistency is poor

Slow output speed

The proofing format can be large or small.

Higher system cost

Personnel requirements are high without special requirements

Others need color separation output, printing version does not need

Large footprint

High environmental requirements, no special environmental requirements

Initially, proofing was done on the press by plates (plates and impression cylinders). From a technical point of view, only a truly outstanding proof can be called proofing.

Of course, proofing on a press is unprofitable. Therefore, people are looking for a more favorable proofing method - printing proofs on a web and a flat proofer. In order to simulate the results of the actual production press, the proofing conditions must be closer to the actual printing conditions.

Later, people began to use reproducible proofing methods, but these methods can only be used as substitutes for proofing, because it is no longer printing ink on officially printed paper, but using colorants and other pigments in synthetic materials. Print a sample on the carrier. Devin called this proofing method "Proof", but the meaning of the word is completely different in English vocabulary.

English "Proof" is all proofing methods, German means "color test", color test is divided into "material color test" and "non-material color test". The corresponding English names are "hard proofing" and "soft proofing". "Hard copy proofing" is divided into "machine proofing", "offset machine proofing", and the corresponding German name is " proofing", "proofing substitute". Analog proofing substitutes are produced from film, and digital proofing substitutes are produced from digital data.

In French idioms, there is no professional vocabulary for proofing substitutes, and the synonym "Romalin" is used more.

In PS, an image size is 103MM*103MM (including bleeding)

Then after saving as TIFF, after importing into AI, how much is the page set?

The corner is a spot color, right?

A: The page setting is 103mm*103mm, and the corner line is the set color (ie 4 colors).

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