Document processing apparatus

In a document processing apparatus including a heading word dictionary (7), a heading extractor (6), a heading rule dictionary (8a), a heading decision section (8), a document architecture rule dictionary (9a), a document architecture decision section (9) for deciding a logical document architecture, the apparatus further comprising a rule application decision section (12) and a candidate selection indication section (14) to allow the operator to select any desired document architecture, when the document architecture decision section (9) decides plural document architecture candidates in accordance with document architecture rules, thus improving the operability. Further, the past rule application record information (priority order) is stored and updated so as to provide a learning function for providing a better operability.