Nowadays an obvious requirement is WYSIWYG ( What You See Is What You Get). The presented drawing software applications work on the Windows or McIntosh platforms, some under Linux as well. If a precise 3D representation of the molecule is needed, its import from a modelling program or 3D data base is the most feasible arrangement, although the recent drawing packages usually contain a simple 2D → 3D converter module or add-in. The availability of different tools (the palette of fonts, arrows, lines and curves, arcs and other shapes or graphics primitives) is also of high importance. Direct 3D editing is usually not possible – 3D features of a molecule can be visualised only by using the wedged/hashed bond drawing methodology. With publication in mind aesthetics and quality come to the front, ensured by built-in templates, bonds constrained to fixed length and angles, etc. The creation of chemical structures with the conventional drawing software applications would be extremely painstaking and practically impossible. With the aid of these applications one can create professional looking articles and drawings, and a large amount of time for the rewriting, redrawing and making corrections can be spared as well.
Instead, text editors like MS Word, Corel WordPerfect or Apache OpenOffice, etc. The immense development of microelectronics has banished the use of a typing machine, drawing pen, Indian ink and templates.
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