1. An image forming apparatus, comprising: a) image reading means for reading in image information representing an original image; b) extracting means for extracting original words from said image information; c) dictionary means for storing one or a plurality of translation words for each word of one or a plurality of predetermined words; d) setting means for setting a set number; e) translation means including: 1) means for selecting, for each word of said original words, one or a plurality of translation words from among the one or a plurality of translation words stored in said dictionary means for a corresponding word, a number of the thus-selected one or a plurality of translation words being not larger than said set number; and 2) means for outputting said thus-selected one or a plurality of translation words; and f) image forming means for forming a translation word image of the thus-output one or a plurality of translation words, said translation word image being then inserted into said original image below an original word image representing a corresponding word.