Visio Diagram Java API can load and save variety of formats including VSDX, VDX, VSD, VTX, VssX, VSDM, VSTM, Pdf, XPS, SVG, EMF, JPEG, PNG, BMP, TIFF and HTML....Visio Web Drawing File Type VSS The Visio Stencil File Type VST...VST VST Template File PDF PDF (Portable Document Format) XPS...