Once you purchase a house plan from Maramani you will receive the full set of drawings via email either in PDF Only format or full set of DWG & PDF formats depends on the package you purchaese. PDF is a standard format for many types of documents including drawings that can be printed without loss in quality. The files can be viewed on any computer or smartphone but the files cannot be edited. DWG is a standard format used by many different types of computer design software such as AutoCAD. The files can be edited and changes can be made easily to the plans by anyone who knows how to use such software.