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// For complete examples and data files, please go to https://github.com/groupdocs-signature/GroupDocs.Signature-for-Java
// setup Signature configuration
SignatureConfig signConfig = CommonUtilities.getConfiguration();
// instantiating the conversion handler
SignatureHandler<String> handler = new SignatureHandler<String>(signConfig);
PdfSignTextOptions signOptions = new PdfSignTextOptions("John Smith");
signOptions.setForeColor(Color.RED);
//setup text position on a page in 5 centimeters from top
signOptions.setLocationMeasureType(MeasureType.Millimeters);
signOptions.setTop(50);
//setup signature area size in pixels
signOptions.setSizeMeasureType(MeasureType.Pixels);
signOptions.setWidth(200);
signOptions.setHeight(100);
//setup signature margins and horizontal alignment
signOptions.setHorizontalAlignment(HorizontalAlignment.Right);
signOptions.setMarginMeasureType(MeasureType.Percents);
signOptions.getMargin().setRight(10);
//signOptions.setPassword("1234567890");
final SaveOptions saveOptions = new SaveOptions();
saveOptions.setOutputType(OutputType.String);
saveOptions.setOutputFileName("different_measure_types.pdf");
// sign document
String signedPath = handler.<String>sign(CommonUtilities.getStoragePath(fileName), signOptions, saveOptions);
System.out.println("Specify different measure types " + signedPath);