9. A system comprising: a display; a memory device; and a processor that is operatively coupled to the display and the memory device, wherein the processor is configured to execute instructions stored in the memory device that, when executed, cause the processor to invoke a font filtering process that comprises: displaying, on the display, digital content comprising a plurality of characters displayed as glyphs; receiving, via a user interface rendered on the display, a selection of one or more of the plurality of characters, wherein each of the selected characters can be rendered as a corresponding glyph, such that the selection corresponds to selection of one or more glyphs of interest from amongst the displayed glyphs; identifying, from a set of available fonts stored in the memory device, a first subset of available fonts that contain each of the one or more glyphs of interest, and a second subset of available fonts that do not contain each of the one or more glyphs of interest; generating a filtered list of the set of available fonts, wherein the filtered list includes the first subset of available fonts but excludes the second subset of available fonts; displaying, on the display, the filtered list for user selection of a desired font from the filtered list; and applying the desired font to the digital content when a selection from the filtered list is received.
9. A system comprising: a display; a memory device; and a processor that is operatively coupled to the display and the memory device, wherein the processor is configured to execute instructions stored in the memory device that, when executed, cause the processor to invoke a font filtering process that comprises: displaying, on the display, digital content comprising a plurality of characters displayed as glyphs; receiving, via a user interface rendered on the display, a selection of one or more of the plurality of characters, wherein each of the selected characters can be rendered as a corresponding glyph, such that the selection corresponds to selection of one or more glyphs of interest from amongst the displayed glyphs; identifying, from a set of available fonts stored in the memory device, a first subset of available fonts that contain each of the one or more glyphs of interest, and a second subset of available fonts that do not contain each of the one or more glyphs of interest; generating a filtered list of the set of available fonts, wherein the filtered list includes the first subset of available fonts but excludes the second subset of available fonts; displaying, on the display, the filtered list for user selection of a desired font from the filtered list; and applying the desired font to the digital content when a selection from the filtered list is received. 12. The system of claim 9 , wherein the selection of one or more of the plurality of characters is a selection of at least a portion of a digital document.