WYSIWYG is a computer term consisting of the initials of "What You See Is What You Get". It means What You See Is What You Get, and defines the environments in which a very similar output to the one seen on the screen will be produced.
The word is used in the classification of processors and text editors.
The most important feature that distinguishes the What You See Is What You Get tool from other applications is that it can show the finalized version (preview) of a newly entered or modified computer object in real or near-real time. WYSIWYG editors are more preferred due to this difference among the editors.
Another point to consider in the WYSIWYG definition is that no editor actually gives a true one-on-one preview, but that's how the term is embedded in computer terminology. For example, a WYSIWYG text editor generally uses bitmap (bit-map or bitmap) fonts, as do all modifiers.
In this case, it actually causes a noticeable difference between the original file seen on the computer screen and the document that will be printed on paper from this file; Because while a standard laser printer has an average resolution of 300 dpi, the resolution of a good computer screen is around 100 dpi.