Underline, Strikethrough not working in pdfboxlayout2 while using content stream

[bijoybaby]

While using pdfbox pagecontentstream, the markups like underline and strikethrough is not working

try (PDPageContentStream contentStream = new PDPageContentStream(document, page, AppendMode.APPEND, true,
true)) {
Paragraph paragraph = new Paragraph();
String str = "You can alternate the position\n and thickness of an underline, \n so you may also use this \nto {0.25:}strike through \n\n"
paragraph.drawText(contentStream, position, txtAlignment, null);
contentStream.close();
}

[arnthom]

Try paragraph.addMarkup to add the string to the paragraph.
Where do you add the text to the paragraph?
How do you do this?

[ralfstuckert]

As arnthom said, first thing is to use addMarkup(). Alas, some decoration - as underline etc. - need extra handling when using the low level API. See LowLevelText.java for a complete example.

[bijoybaby]

Thanks @arnthom @ralfstuckert.
What I did is, I override the drawn() method from AnnotationDrawListener to a custom class and create a DrawContext object for DrawListener. Now it is working...

Please see the code snippets
/*******************************************************************/
paragraph.addMarkup(str, fontSize, rFont, bFont, iFont, biFont);
Position position = new Position(bottomX, topY);

	DrawContext  context = new DrawContext() {
		@Override
		public PDDocument getPdDocument() {
			return document;
		}
		
		@Override
		public PDPageContentStream getCurrentPageContentStream() {
			return contentStream;
		}
		
		@Override
		public PDPage getCurrentPage() {
			return page;
		}
	};
	CustomAnnotationDrawListner listner = new CustomAnnotationDrawListner(context);
	paragraph.drawText(contentStream, position, txtAlignment, listner);
	listner.afterPage();
	contentStream.close();

/**************************************************************************/

/************CustomAnnotationDrawListner.java/

public class CustomAnnotationDrawListner extends AnnotationDrawListener {

private static final Logger LOGGER = LoggerFactory.getLogger(CustomAnnotationDrawListner.class);

private final DrawContext drawContext;
private final Iterable<AnnotationProcessor> annotationProcessors;

 public CustomAnnotationDrawListner(final DrawContext drawContext) {
	 super(drawContext);
		this.drawContext = drawContext;
		annotationProcessors = AnnotationProcessorFactory
			.createAnnotationProcessors();
	    }

public void afterPage() throws IOException {
for (AnnotationProcessor annotationProcessor : annotationProcessors) {
    try {
	annotationProcessor.afterPage(drawContext);
    } catch (IOException e) {
    	LOGGER.error("Exception in afterPage ", e);
    }
}
}

@Override
public void drawn(Object drawnObject, Position upperLeft, float width,
    float height) {
if (!(drawnObject instanceof Annotated)) {
    return;
}
for (AnnotationProcessor annotationProcessor : annotationProcessors) {
    try {
	annotationProcessor.annotatedObjectDrawn(
		(Annotated) drawnObject, drawContext, upperLeft, width,
		height);
    } catch (IOException e) {
    	LOGGER.error("Exception in drawn ", e);
    }
}
}

}

/********************************************************************************/