DWGLock 2008.10 - Version 2.803 A powerful and fast dwg tools, Protecting drawing file, Keep others from modifying/copying your design.DWGLock 2008.10 is a stand-alone application, no AutoCAD required; Supports AutoCAD R2.9 thru 2009 drawings.Key features:1.Powerful encryption capabilities, secure Maximize security for the entities in the drawing, they can not copy nor change it.Say No to any arbitrary use of your designs; 2.Recipients can open up to view protected drawing without any inconvenience, they can even add lines, markup.Preserve or discard their comments, it's all up to you;3.With password, the drawing owner is allowed to unlock the drawing;4.Batch encrypt/un-encrypt many files or folders in one go;5.easy to use.Now you can protect your works with this DWGLock software, the entities in the send out drawings can NOT be copied nor changed. However, recipients can open up the drawing, add lines and markups. Only the drawing owner allows extracting the drawing, if they need to, enclosing the added part with the native drawing. This is ideal solution for the collaboration needs and contractors.