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....Conventions) VDX Drawing or chart created with Microsoft Visio...Graphics (An XML-based vector image format) EMF Enhanced MetaFile...