In December 2006 the sK1 open-source project team started to reverse-engineer the CDR format. The results and the first working snapshot of the CDR importer were presented at the Libre Graphics Meeting 2007 conference taking place in May 2007 in Montreal (Canada). Later on the team parsed the structure of other Corel formats with the help of the open source CDR Explorer. As of 2008, the sK1 project claims to have the best import support for CorelDraw file formats among open source software programs. The sK1 project developed also the UniConvertor, a command line open source tool which supports conversion from CorelDraw ver.7-X4 formats (CDR/CDT/CCX/CDRX/CMX) to other formats. UniConvertor is also used in the Inkscape and Scribus open source projects as an external tool for importing CorelDraw files.
In 2000, Adobe released the first version of InDesign with the intent to replace PageMaker and offer an application that was more competitive with QuarkXPress. With the dawn of Mac OS X, Adobe also had the first-mover advantage by offering InDesign as the first desktop publishing program native for OS X, as QuarkXPress was only available on earlier versions of the Mac OS at that time.
InDesign CC provides access to other Adobe resources. Many of these services within InDesign CC involve additional paid services, in which Adobe collects additional fees beyond the monthly license for the CC apps. These include Adobe Stock which, for additional fees, provides access to images. Similarly, fonts from Typekit are available for additional fees beyond the cost of InDesign.
In its first versions, the CDR file format was a completely proprietary file format primarily used for vector graphic drawings, recognizable by the first two bytes of the file being "WL". Starting with CorelDraw 3, the file format changed to a Resource Interchange File Format (RIFF) envelope, recognizable by the first four bytes of the file being "RIFF", and a "CDR*vrsn" in bytes 9 to 15, with the asterisk "*" being just a blank in early versions. Beginning with CorelDraw 4 it included the version number of the writing program in hexadecimal ("4" meaning version 4, "D" meaning version 14). The actual data chunk of the RIFF remains a Corel proprietary format. sequential numbering in word