REST APIs and Free Apps for documents & images conversion on .NET device. Convert between PDF, Microsoft Word, Excel, Visio Drawing Template, Markdown Documentation File, PPTX, Project, HTML, email and images using our Free Apps....allows you to convert between Visio Drawing Template (VSTX) & Markdown...VSTX to ICO VSTX to PSD VSTX to WMF VSTX to EMF VSTX to DCM VSTX...