Data Generating Apparatus, and Print Apparatus

摘要

Text data corresponding to at least a part of a text contained in the file or picture data corresponding to at least a part of a picture contained in the file is extracted. Thumbnail data to be used as an index thumbnail using the extracted text data or the extracted picture data is generated. An output size of the thumbnail is set by adjusting the output size according to the characteristics of the file from which each thumbnail data is extracted. For each file, an index data is generated by using the thumbnail data of the set output size. The generated index data can be displayed or printed.