The quality of distribution and I.T. required to achieve this is extremely high. Antalis has developed technology in these areas that places it in a distinctly advantageous position in the Paper Merchanting industry. Antalis still believes in the power of print and supports the ongoing campaign to educate the world about the advantages of paper over electronic media.
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See if the documents are digitally signed? That would prevent them from being modified and will hold up in court. Otherwise, they are no different than a faxed piece of paper and could easily be modified to contain a signature.
Most of the time we sign things that are to both parties benefit. So the fact our signature is on a piece of paper somewhere isn’t primary reason both parties perform their side of the agreement. There are very few contracts where someone is going to claim that they didn’t sign it. This is true for physical and digital (in the picture sense) signatures.
Steganography provides some very useful and commercially important functions in the digital world, most notably digital watermarking. In this application, an author can embed a hidden message in a file so that ownership of intellectual property can later be asserted and/or to ensure the integrity of the content. An artist, for example, could post original artwork on a Website. If someone else steals the file and claims the work as his or her own, the artist can later prove ownership because only he/she can recover the watermark (Arnold et al. 2003; Barni et al. 2001; Kwok 2003). Although conceptually similar to steganography, digital watermarking usually has different technical goals. Generally only a small amount of repetitive information is inserted into the carrier, it is not necessary to hide the watermarking information, and it is useful for the watermark to be able to be removed while maintaining the integrity of the carrier.
Voloshynovskiy, S., Pereira, S., Pun, T., Eggers, J. J., and Su, J. K. Attacks on digital watermarks: Classification, estimation-based attacks, and benchmarks, (2001) 39(8):118-126.
Fridrich, J., Goljan, M., and Du, R. Steganalysis based on JPEG compatibility. In: , Special Session on Theoretical and Practical Issues in Digital Watermarking and Data Hiding, vol. 4518. International Society for Optical Engineering, Denver, Colorado, August 21-22, 2001, pp. 275-280. Also available: .
Steganography and Digital Watermarking are both forms of information hiding where the context can be viewed as keeping the information a secret or making the information subtle respectively. Both these methods have been around for a long time, at least several centuries, however they have only gained worldwide popularity in the digital world since roughly the mid 1990s. With new technologies constantly emerging, these two methods have been used to prevent theft, prevent plagiarism, track, and hide secrets among other things. There is not one standard way of implementing these techniques and each version differs from one another. Thus, with the vast amount of applications these techniques can be applied to, many companies have made software to create and detect both techniques.
Although this subject is also beyond the scope of this paper, one interesting example of steganography disruption software can be used to close this discussion. 2Mosaic by Fabien Petitcolas employs a so-called "presentation attack" primarily against images on a Website. 2Mosaic attacks a digital watermarking system by chopping an image into smaller subimages. On the Website, the series of small images are positioned next to each other and appear the same as the original large image (Petitcolas 2003).
Digital watermarking is the process of embedding a symbol of some sort into the media file to distinguish the file from others. The embedded watermark is meant to be permanent and follows a process in which there is alterations to the media file. Digital watermarking can be hidden or seen in plain sight by other parties. Deciding on whether to use visible/invisible watermarking depends on the function of the media file, but with either technique, when the media file is copied the digital watermark gets copied as well. Digital watermarks are designed in such a way that they do not restrict the media file or change the media file in such a way it detracts the quality. Its main purpose is to detect misuse and act as a form of signature from the owner. 
A computer forensics examiner looking at evidence in a criminal case probably has no reason to alter any evidence files. However, an examination that is part of an ongoing terrorist surveillance might well want to disrupt the hidden information even if it cannot be recovered. Hidden content, such as steganography and digital watermarks, can be attacked in several ways so that it can be removed or altered (Hernandez Martin and Kutter 2001; Voloshynovskiy et al. 2001), and there is software specifically designed to attack digital watermarks. Such attacks have one of two possible effectsthey either reduce the steganography carrying capacity of the carrier (necessary to avoid the attack) or fully disable the capability of the carrier as a steganography medium.
The word watermark is thought to have been derived from the German word wassermarke and is termed as the marks were thought to have resembled the effects of water on paper. Watermarking first began in Italy in 1282 where wired patterns were created during paper production which left designs in the paper once it molded. The purpose is unclear as to why watermarking was done back than. However in the eighteenth century, paper made in Europe and America using watermarking technology was to ensure trademarks, track when the paper was created, indicate size of the sheets, and prevent counterfeiting.