REST APIs and Free Apps for documents & images conversion on .NET device. Convert between PDF, Microsoft Word, Excel, Visio Stencil File, Visio Drawing Template, PptX, Project, HTML, email and images using our Free Apps....convert between Visio Stencil File (VSSX) & Visio Drawing Template...to VSSM VSSX to VSTM VSSX to PPT VSSX to PPS VSSX to PPTX VSSX...