REST APIs and Free Apps for documents & images conversion on .NET device. Convert between PDF, Microsoft Word, Excel, Visio Drawing File, Plain Text File, PPTX, Project, HTML, email and images using our Free Apps....allows you to convert between Visio Drawing File (VSDX) & Plain...to PPS VSDX to PPTX VSDX to PPSX VSDX to ODP VSDX to OTP VSDX...