DWG file annotation and signature generation and analysis plug-in, and use method thereof

The invention discloses a DWG file annotation and signature generation and analysis plug-in. The plug-in comprises a generation plug-in and an analysis plug-in which are loaded to an AUTOCAD system, wherein the generation plug-in comprises an electronic signature module, a mirror image processing module, a review annotation module, a file creation module, a monitoring module and a compounding module; the mirror image processing module is used for performing mirror image processing on a presentation layer of a DWG file to obtain a mirror image file; the file creation module is used for creating a data stream file according to an operation version of a user and binding the data stream file with the mirror image file; the monitoring module is used for monitoring operation contents of the user and storing the operation contents in the data stream file bound with the operation contents; the compounding module is used for compounding the data stream file into a compound file by taking an original DWG file as a host