1. 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: receiving from a remote computing device a document having a font descriptor appended thereto, the font descriptor corresponding to a font of the document; extracting the font descriptor from the document, the font descriptor including font features derived from a visual appearance of the font using a font visual similarity model trained with machine learning; determining a similar font descriptor by comparing the font descriptor to multiple font descriptors that respectively correspond to multiple local fonts that are available at the at least one computing device; ascertaining from among the multiple local fonts a similar font that corresponds to the similar font descriptor; and controlling presentation of the document using the similar font.