1. A document processing system, comprising: a document management apparatus adapted to execute a processing task according to a job flow that defines an execution order of a plurality of processing tasks; and a document property management apparatus adapted to manage a property of a document, wherein the document management apparatus comprises: a document input unit; a job flow processing unit adapted to execute each respective processing task that is included in the job flow, according to the job flow, on a document that is inputted via the document input unit; an output unit connected to the job flow processing unit, and adapted to perform an output processing on the document that is processed by the job flow processing unit, according to the job flow; a document property acquiring unit adapted to acquire a property of the document from the document property management apparatus when the document is inputted; a check unit adapted to check, based on the property of the document acquired by said document property acquiring unit, what authorization to the document a first user executing the job flow has, and what authorization to the document a second user related to the job flow has, wherein the second user is different from the first user and is an output destination of the document; and a change unit adapted to change either a processing content of the processing task that the job flow processing unit executes, or an output content of the output unit, according to a check result of the check unit, wherein the job flow processing unit or the output unit operates according to the processing content or the output content, respectively, as changed by the change unit.
1. A document processing system, comprising: a document management apparatus adapted to execute a processing task according to a job flow that defines an execution order of a plurality of processing tasks; and a document property management apparatus adapted to manage a property of a document, wherein the document management apparatus comprises: a document input unit; a job flow processing unit adapted to execute each respective processing task that is included in the job flow, according to the job flow, on a document that is inputted via the document input unit; an output unit connected to the job flow processing unit, and adapted to perform an output processing on the document that is processed by the job flow processing unit, according to the job flow; a document property acquiring unit adapted to acquire a property of the document from the document property management apparatus when the document is inputted; a check unit adapted to check, based on the property of the document acquired by said document property acquiring unit, what authorization to the document a first user executing the job flow has, and what authorization to the document a second user related to the job flow has, wherein the second user is different from the first user and is an output destination of the document; and a change unit adapted to change either a processing content of the processing task that the job flow processing unit executes, or an output content of the output unit, according to a check result of the check unit, wherein the job flow processing unit or the output unit operates according to the processing content or the output content, respectively, as changed by the change unit. 3. The document processing system according to claim 1 , wherein the document property management apparatus is a document property management server that is connected over a network to the document management apparatus.