REST APIs and Free Apps for documents & images conversion on .NET device. Convert between PDF, Microsoft Word, Excel, Visio Macro-Enabled Drawing Template, Visio Stencil File, PPTX, Project, HTML, email and images using our Free Apps....between Visio Macro-Enabled Drawing Template (VSTM) & Visio Stencil...to VDX VSTM to VSSX VSTM to VSTX VSTM to VSDM VSTM to VSSM VSTM...