6. An adaptive document displaying apparatus comprising: a document analyzing unit to analyze, using one or more processors, each of a plurality of components included in a document; a document converting unit to convert the document based on a result of analysis and the attribute of the displaying apparatus, and wherein the document analyzing unit includes a document tree creating unit to calculate a priority for each of the plurality of components based on attributes of each respective component, a user's profile, and an attribute of the displaying apparatus, and the document converting unit changes an amount of content of each component and a size of a display region of each component based on the result of the analysis using the calculated priority of each component and the attribute of the displaying apparatus, wherein the document analyzing unit further includes a summary information creating unit to create summary information of each component, and a length of summary information is selected for a first component among the plurality of components using a calculated priority of the first component and the attribute of the displaying apparatus.
6. An adaptive document displaying apparatus comprising: a document analyzing unit to analyze, using one or more processors, each of a plurality of components included in a document; a document converting unit to convert the document based on a result of analysis and the attribute of the displaying apparatus, and wherein the document analyzing unit includes a document tree creating unit to calculate a priority for each of the plurality of components based on attributes of each respective component, a user's profile, and an attribute of the displaying apparatus, and the document converting unit changes an amount of content of each component and a size of a display region of each component based on the result of the analysis using the calculated priority of each component and the attribute of the displaying apparatus, wherein the document analyzing unit further includes a summary information creating unit to create summary information of each component, and a length of summary information is selected for a first component among the plurality of components using a calculated priority of the first component and the attribute of the displaying apparatus. 7. The adaptive document displaying apparatus as claimed in claim 6 , wherein the attribute of the displaying apparatus includes at least one of a size and a shape of a display screen of the displaying apparatus.