CADstudio DWGsign Reader is a free add-on utility for AutoCAD® which checks watermarks/signatures (added through the DWGsign add-on) in your DWG drawings. DWGsigns adds permanent invisible signatures containing your or your company's name. This tool helps to protect your intellectual property (IP) as you can prove the ownership the original content in any future DWG files which are based on this signed document.
More on www.cadstudio.cz/dwgsign
关于此版本版本 1.0.0, 2016/4/12
AutoCAD® 2017 compatibility added without changing version number