// For complete examples and data files, please go to https://github.com/groupdocs-conversion/GroupDocs.Conversion-for-Java
ConversionHandler conversionHandler = new ConversionHandler(Utilities.getConfiguration());
// Save options
PdfSaveOptions saveOptions = new PdfSaveOptions();
saveOptions.setOutputType(OutputType.String);
WatermarkOptions watermarkOptions = new WatermarkOptions("Watermark text");
watermarkOptions.setColor(Color.blue);
watermarkOptions.setFont(new Font("Arial", 40, 12));
watermarkOptions.setRotationAngle(45);
watermarkOptions.setTransparency(0.1);
watermarkOptions.setLeft(200);
watermarkOptions.setTop(400);
saveOptions.setWatermarkOptions(watermarkOptions);
String result = conversionHandler.<String> convert(sourceFileName, saveOptions);
System.out.println(
"The conversion finished. The result can be located here: " + result + ". Press <<ENTER>> to exit.");