TIFF is a format that allows you to store raster graphics with tags. It was developed by Aldus Corporation in conjunction with Microsoft so that it can be used with PostScript. Aldus Corporation owns specifications. Subsequently, this company merged with Adobe Systems. It is she who now owns the copyright to these specifications. Typically, TIFF files (Tagged Image File Format) are with the extension .tiff or .tif. Aldus was specifically engaged in the development of the format in order to achieve the preservation of scanned images. The popularity of TIFF can be explained by the fact that it is preferred in order to store images that have a large color depth. The format is used to send faxes, scan, recognize texts. It is widely supported in the printing industry. TIFF was chosen as the main graphic format of the NeXTSTEP operating system. Then from this system TIFF support migrated to Mac OS X. At first, the format supported lossless compression. Then it was supplemented in order to support lossy compression in JPEG format. We emphasize that the maximum weight of a document, if stored in this form, is no more than 4 GB. To open a TIFF file larger than 2 GB, you must run Photoshop CS.
CGM is an example of an open vector graphics format and an international standard designed to store and share graphic data. We are talking about raster and 2D vector graphics, text. CGM, that is, Computer Graphics Metafile, is a format that is designed to support the needs of various graphics applications. Any graphic element in such a file can be described both in binary and in text format. At first it was used for clip art libraries. However, the new versions, which are based on the ISO / IEC 8632 standard, have found application in automated drawing design. At the moment, the format is used in design, aviation and other technical fields. Consortium World Wide Web Consortium has developed a profile of the use of CGM on the network - WebCGM. CGM files are encoded using three methods. This is binary encoding, that is, file encoding according to the standard. Allows software products to read a file faster. Then comes character-based encryption. Provides the smallest size option, which saves disk space, and also facilitates the rapid transfer of data. The third type of encryption is text based. With it, users will be able to read and understand the contents of the file, as well as modify it using a basic text editor.