8. In a digital medium environment to enable font replacement at a destination device for a document created at a source device, at least one computing device including a processing system and memory having instructions stored thereon that are executable by the processing system to perform operations comprising: ascertaining at least one font present in a document; determining a font descriptor corresponding to the at least one font, the font descriptor including font features derived from a visual appearance of the at least one font using a font visual similarity model trained with machine learning, the font descriptor usable to determine a visually similar local font to replace the at least one font at a remote computing device; appending the font descriptor to the document; and transmitting the document including the appended font descriptor to the remote computing device.
8. In a digital medium environment to enable font replacement at a destination device for a document created at a source device, at least one computing device including a processing system and memory having instructions stored thereon that are executable by the processing system to perform operations comprising: ascertaining at least one font present in a document; determining a font descriptor corresponding to the at least one font, the font descriptor including font features derived from a visual appearance of the at least one font using a font visual similarity model trained with machine learning, the font descriptor usable to determine a visually similar local font to replace the at least one font at a remote computing device; appending the font descriptor to the document; and transmitting the document including the appended font descriptor to the remote computing device. 13. The at least one computing device as described in claim 8 , wherein the appending comprises appending a version value to the document, the version value indicative of a version of the font visual similarity model.