REST APIs and Free APps for documents & images conversion on .NET device. Convert between PDF, Microsoft Word, Excel, Visio Drawing File, PowerPoint Open XML Macro-Enabled Slide, PPTX, Project, HTML, email and images using our Free APps....allows you to convert between Visio Drawing File (VSD) & PowerPoint...VSD to VSTM VSD to PPT VSD to PPS VSD to PPTX VSD to PPSX VSD to...