Summercad

SmartLock
Trial versionSecure your designs by locking AutoCAD DWG file and protect intellectual property.
Windows
Non-deletableWatermark
FreeDraw a non-deletable watermark in AutoCAD, and it will never be deleted.
Windows
DeDynamicBlock
FreeConvert dynamic block in the drawing to static block, and removes other dynamic states in blocks.
Windows
SmartLock - CAD Batch Lock (Type B)
Trial versionSmartLock-B: Secure Your AutoCAD Designs with Ease
Windows
SmartSignSafety Visual Digital Signature For AutoCAD
Trial versionSecure Your CAD Drawings With Visual Digital Signatures
Windows