A computer-readable recording medium on which a document management program capable of calculating an evaluation value for objectively judging information transparency in an organization is recorded. When an original document is inputted, a document input section stores the document in a document store section. After that, a document correction section corrects a character string of the document stored in the document store section in response to operation input and registers a correction history including a number of characters deleted by a character string deletion process and a correction history including a number of characters before replacement by a replacement process in a correction history table. A correction history analysis section uses an opacity rate the value of which becomes higher with an increase in the number of the characters deleted from the document or an increase in the number of the characters before the replacement by the replacement process and makes a decision table including the opacity rate.