Convert from bitmap
to CAD drawing
| Feature Description | Freeware Version  |   Professional Version  | 
 
| Vector Extraction | ||
| One-Touch Vectorisation | Yes | Yes | 
| Extract line Centres | Stentiford, Zhang Suen  |   Stentiford, Zhang Suen, Best Combination  |  
 
| Extract Edges | Canny | Simple, Advanced, Canny  | 
 
| Arc Recognition | Yes | |
| Colour Vectors | Yes | |
| Polyline Smoothing | Yes | Yes | 
| Polyline Reduction | Yes | Yes | 
| Intelligent line intersections | Yes | |
| Preview on options windows | Yes | Yes | 
| Automatic scaling | Yes | Yes | 
| Georeference | Yes | |
| Batch processing | Yes | |
| Save vector formats | AutoCAD DXF, ArcView SHP/SHX/DBF, MapInfo MIF, Genamap DI, Raw XYZ, WinTopo WTX, MetaFile WMF/EMF, Clipboard  |   AutoCAD DXF, ArcView SHP/SHX/DBF, MapInfo MIF, Genamap DI, Raw XYZ, WinTopo WTX, MetaFile WMF/EMF, Clipboard  | 
 
| Raster Image Functions | Freeware | Professional | 
| Load files formats | BMP, TIF, JPG, GIF, PNG  |   BMP, TIF, JPG, GIF, PNG, GeoTIF  | 
 
| Scan from any TWAIN scanner | Yes | |
| Despeckle | Yes | |
| Fill Holes | Yes | |
| Prune | Yes | |
| Negative | Yes | |
| Brightness | Yes | Yes | 
| Greyscale from colour | Yes | Yes | 
| Contrast | Yes | Yes | 
| Gamma | Yes | Yes | 
| Threshold colour removal | Yes | Yes | 
| Heal | Yes | |
| Erode | Yes | |
| Snap Edges | Yes | |
| Mirror | Yes | Yes | 
| Rotate | Yes | Yes | 
| Save image formats | BMP, TIF, PNG  |   BMP, TIF, PNG  | 
 
| Digitising Functions | Freeware | Professional | 
| Digitise new polylines | Yes | |
| Move nodes | Yes | |
| Delete nodes | Yes | |
| Delete line - break polyline into two | Yes | |
| Join two polylines | Yes | |
| Point snap options | Yes | |
| Digitising colour selection | Yes | |
| View Functions | Freeware | Professional | 
| Realtime Panning | Yes | Yes | 
| Realtime Scrolling | Yes | Yes | 
| Zoom In/Out | Yes | Yes | 
| Zoom All | Yes | Yes | 
| Zoom 1:1 | Yes | Yes | 
| Show Line Colour | Yes | |
| Show Line IDs | Yes | Yes | 
| Show Z Level | Yes | |
| Show Line Nodes | Yes | Yes |