However, due to the customary reliance on traditional paper media proofing, users are highly skeptical about using the display to complete the proofing process. To sum up, there are mainly these problems: the display is a luminous body, and the traditional proofs are reflectors; whether or not the display can truly reproduce the printed colors after being corrected; there are individual differences between the displays. At present, paperless proofing is mostly used for simple layout proofing and text proofing. Fortunately, a small number of forward-thinking companies have begun to explore this technology and have entered the trial phase. Remote digital proofing Remote digital proofing is also not a new concept. It is relative to traditional stand-alone local proofing. Currently, it is generally based on paper media. In short, remote proofing solves the problem of off-site proofing for the same job. At present, there are many solutions that can be implemented. For example: Using the nested ICC profile PDF and high-speed network transmission and high-precision color inkjet output devices, we can efficiently achieve off-site proofing output of the same job. Strict color management system and accurate equipment calibration process can ensure high proof quality. Remote proofing is an ideal offsite proofing output method. It has several obvious advantages: 1. High efficiency. Using high-speed network to transmit proofing documents and a unified calibration output device, remote proofing can achieve efficient proofing output from different places, saving off-site transportation time. 2. high quality. The use of modern color management technology and high-precision color output devices ensures the quality and consistency of proofs that are exported from different locations. 3. low cost. Relative to local proofing off-site transportation, remote proofing saves on transportation costs. At present, medium and high-end customers and medium and large-scale printing factories have already recognized this proofing method to a high degree. However, remote media proofing based on paper media does not achieve the same high efficiency of remote proofing. The cost will increase exponentially with the increase in the number of proofs. At the same time, the emergence of diversified remote sites also makes quality management difficult. Generate contract disputes. Paperless remote proofing Simply put, paperless remote proofing refers to the use of paperless proofing technology to complete a new proofing program including remote proofing, proofing, and proofing. The paperless remote proofing system should have the following conditions: 1. Meet the quality standards of proofing. As a proofing system, the first is to be able to simulate the reproduction of the print results. 2. Paperless proofing. Through computer color management, using high-precision display output proofs to achieve paperless proofing process. 3. Remote proofing. Through the high-speed network transmission of the proofing file, the synchronous paperless proofing output of the same job can be achieved in different places. 4. Remote proofing / signing. Through high-speed network transmission and sharing of proofing files, the process of annotating, re-proofing, and signing the same job can be realized in different places. In addition, since all proofs exist in electronic form, paperless remote digital proofing should also have cross-platform (Windows and Mac OS) electronic proofs storage management capabilities, client endorsements and sample authorization capabilities, and proofs of authorization Upload, download and other functions. Paperless remote proofing not only integrates the advantages of paperless proofing and remote digital proofing, but also effectively overcomes the deficiencies of both methods. The first is to ensure that the monitor meets the printing color standard: several displays of brands such as EIZO, Sony and Apple have already obtained SWOP, and they are certified to correctly display the printing color space; the screen correction tool factory provides advanced color correction instruments such as Green Ii et al. controlled the color difference between the screen and the printing standard to be within the deltaE2 that can be distinguished by the human eye. Secondly, using light emitters to output proofs is to some extent an improvement. Proofs are very small due to ambient light sources, and they are no longer affected by other environmental conditions such as temperature and humidity. Individual differences in the display are inevitable. Just as there are differences among individuals in other proofing devices, the test data shows that the individual errors of the high-precision display can be smaller than the paper proof output devices. Due to the use of the same proofing job for outputting, proofing and proofing, paperless remote proofing can effectively overcome the problems caused by the diversity of the sheets. However, like traditional digital proofing, paperless remote proofing does not perform well when simulating special spot colors (such as metallic colors), and lacks the ability to simulate special processes for packaging and printing. Recalling that digital proofing entered China several years ago, users are skeptical about using non-printing methods to simulate printing results. Today it is difficult for us to find a printing factory that does not accept digital proofing. By avoiding weaknesses, the comprehensive proofing system has become the mainstream, and technological progress has brought us benefits. Paperless remote proofing has also gone through a process of recognition and acceptance in the West, but the time is much shorter. Due to the remarkable innovations in proofing/annotation-reproofing-licensing methods and the features of high quality, convenience and low energy consumption, paperless remote proofing has become an integral part of the integrated proofing system in the United States. As the "Time Magazine" printer, the famous printing company in the United States, Brown Printing Company, has a deep impression: The biggest benefit of paperless remote proofing is that it is no longer necessary to stand in branch printing plants all over the United States as in the past. There are several different proofs for the same job, but the workshop must be printed in the same magazine as the one they had never seen before. At the same time, the degree of automation in production (mainly the proofing process) has been greatly improved. With advanced screen display technology and color management tools as a guarantee, paperless remote proofing will certainly add luster to the rapid development of China's printing industry.