Presentation presentation =new Presentation();
presentation.loadFromFile("线条颜色2.pptx");
SlideCollection slides = presentation.getSlides();
byte[] bytes = slides.get(0).saveToSVG();
String outputFile="a.svg";
OutputStream outputStream=new BufferedOutputStream(new FileOutputStream(outputFile));
outputStream.write(bytes);
outputStream.close();
// 红色线条转svg 变成蓝色
//spire for java 7.12.4
//文件见附件