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 VSD Visio Drawing (Vector Graphics File Format) VSX Visio...and Mermaid sequence diagram PDF PDF (Portable Document Format)...