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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);

// setup options
PdfStampSignOptions signOptions = new PdfStampSignOptions();
signOptions.setHeight(300);
signOptions.setWidth(300);

//Outer round lines
StampLine line0 = new StampLine();
line0.setText(" * European Union * European Union  * European Union  * European Union  * European Union  * ");
line0.getFont().setFontSize(12);
line0.setHeight(22);
line0.setTextBottomIntent(6);
line0.setTextColor(Color.LIGHT_GRAY);
line0.setBackgroundColor(Color.BLUE);
signOptions.getOuterLines().add(line0);

StampLine line1 = new StampLine();
line1.setHeight(2);
line1.setBackgroundColor(Color.WHITE);
signOptions.getOuterLines().add(line1);

StampLine line2 = new StampLine();
line2.setText("* Entrepreneur * Entrepreneur ** Entrepreneur * Entrepreneur *");
line2.setTextColor(Color.BLUE);
line2.getFont().setFontSize(15);
line2.setHeight(30);
line2.setTextBottomIntent(8);
line2.getInnerBorder().setColor(Color.BLUE);
line2.getOuterBorder().setColor(Color.BLUE);
line2.getInnerBorder().setStyle(ExtendedDashStyle.Dot);
signOptions.getOuterLines().add(line2);

//Inner square lines
StampLine line3 = new StampLine();
line3.setText("John");
line3.setTextColor(Color.RED);
line3.getFont().setFontSize(20);
line3.getFont().setBold(true);
line3.setHeight(40);
signOptions.getInnerLines().add(line3);

StampLine line4 = new StampLine();
line4.setText("Smith");
line4.setTextColor(Color.PINK);
line4.getFont().setFontSize(20);
line4.getFont().setBold(true);
line4.setHeight(40);
signOptions.getInnerLines().add(line4);

StampLine line5 = new StampLine();
line5.setText("SSN 1230242424");
line5.setTextColor(Color.MAGENTA);
line5.getFont().setFontSize(12);
line5.getFont().setBold(true);
line5.setHeight(40);
signOptions.getInnerLines().add(line5);

// if you need to sign all sheets set it to true
signOptions.setSignAllPages(true);

SaveOptions saveOptions =  new SaveOptions();
saveOptions.setOutputType(OutputType.String);
saveOptions.setOutputFileName("signed_output");

// sign document
String signedPath = handler.<String>sign(fileName, signOptions, saveOptions);
System.out.println("Signed file path is: "+signedPath);