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....Supported File Formats Contents [ Hide ] Supported File Formats...Graphics (An XML-based vector image format) EMF Enhanced MetaFile...