Each vector can be individually edited in a CAD program. Raster files store data very differently. Put simply, a raster file creates a picture by starting at the top left and painting a line of individual dots, one by one, from left to right. When it gets to the end of the line it goes down one line and starts again. Adobe Acrobat Reader PDF files can also contain raster images.
Scanners create raster files.
Trix Systems offers solutions for converting between raster and CAD vector format files, in either direction. We can quote to provide the conversion as a service or to provide you with the software to undertake conversion yourself. Click on the appropriate yellow button below to submit a query to us. This is often referred to as raster to vector conversion. Or for Web publishing on Internet.