15. A computing system, comprising: at least one processor; and at least one memory having computer-readable instructions that when executed by the at least one processor cause the computing system to perform a method, the method comprising: receiving a selection of textual content comprising at least a first line of text and a second line of text that are not included in a hierarchical graphic, wherein there is a hierarchical relationship between the first line of text and the second line of text; receiving a selection of a conversion command; generating the hierarchical graphic from the selected textual content, the hierarchical graphic comprising: at least a first graphical shape encapsulating the first line of text; and at least a second graphical shape encapsulating the second line of text, wherein there is a graphical hierarchical relationship between the first graphical shape and the second graphical shape that corresponds to the hierarchical relationship between the first line of text and the second line of text; and replacing the selected textual content with the hierarchical graphic.
19. The computing system of claim 15 , wherein the selected textual content occupies a portion of a document before the replacing, and wherein the hierarchical graphic is scaled to occupy substantially the same portion of the document after the replacing.