Objective and subjective complexity of document texts

The article is devoted to complexity as the characteristic of the document text, and its complexity as a specific operation, the result of which can be assessed objectively and subjectively. Objective complexity of the document text contributes to the following challenges for the author: 1) in terms of content to convey new information concerning a certain professional or social activities; 2) in terms of expression to convey information in the usual form (in accordance with the canons of construction of document text). However, when compiling the document the authors seek to solve additional tasks that determine the subjective difficulty of the text: 1) explain, comment on parts of text that convey special knowledge in the document; 2) to overcome the lack of textual and language competence when building document text; 3) enter the recipients misleading. The author examines such factors document texts complexity as the content, according to the canons of construction of document text, the commenting, the lack of textual competence of the author, the authors desire to enter the recipients misleading about the reported information. In different communicative situations, these factors can be modified or perform jointly that determines the variability of both objective and subjective indices of difficulty of the text document.