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                                        PageContent content = new PageContent();
					content.Create();
					content.GSSave();
					Matrix mat = new Matrix(1, 1,10, 730);
					content.GSSetMatrix(mat);
					mat.Destroy();
					DocFont dfont = m_doc.NewFontCID("Helvetica Bold", 1);
					ResFont rfont = page.AddResFont(dfont);
					content.TextBegin();
					content.TextSetFont(rfont, 25);// set font and
					content.TextSetCharSpace(1f);
					content.TextSetWordSpace(0.2f);
					content.TextSetLeading(16);
					content.TextSetRenderMode(0);
					//SpannableString content11 = new SpannableString(Txt_roomate);
					//content11.setSpan(new UnderlineSpan(), 0, content11.length(), 0);				
					content.DrawText("Centered and Underlined Text");
					content.SetFillColor(Color.parseColor(Global.pdf_general_text_color));
					content.SetStrokeColor(Color.parseColor(Global.pdf_general_text_color));
					content.TextEnd();
					content.GSRestore();
					page.AddContent(content, true);
					content.Destroy();

Page page = m_doc.NewPage(pageno, w, h);//create A4 paper

        PageContent content = new PageContent();
		content.Create();//create content, do not forget.

		//set alpha for both fill and stroke
		DocGState dgs = m_doc.NewGState();
		dgs.SetFillAlpha(255);//set alpha value to 0.5
		dgs.SetStrokeAlpha(255);//set alpha value to 0.5
		ResGState rgs = page.AddResGState(dgs);
		content.GSSet(rgs);

		//prepare to write texts
		content.GSSave();

		int style = 1;
		DocFont dfont = m_doc.NewFontCID("DroidSansFallback", style);//bold-italic and embed in horizontal writing
        if(dfont == null)
        {
            dfont = m_doc.NewFontCID("Roboto-Regular", style);
            if(dfont == null)
                dfont = m_doc.NewFontCID("DroidSans", style);
        }
		ResFont rfont = page.AddResFont(dfont);

        //center text
        String text = "Pink text!";
        float[] size = content.TextGetSize(rfont, text, 22, 22,0, 0.2f);
        content.GSSave();
        Matrix mat = new Matrix( 1, 1, (w-size[0])/2, 777 );
        content.GSSetMatrix(mat);
        mat.Destroy();

		content.TextBegin();
		content.TextSetFont(rfont, 22);//set font and size
		content.SetFillColor(0xff69b4);//set fill color to black-green.
		content.TextSetCharSpace(0);
		content.TextSetWordSpace(0.2f);
		/*content.TextSetLeading(16);
		content.TextSetRenderMode(0);//fill and stroke
		content.TextSetHScale(120);//set horizontal scale*/
		content.DrawText(text);
		content.TextEnd();
		content.GSRestore();

		//underline
		dgs = m_doc.NewGState();
		dgs.SetFillAlpha(255);//set alpha value to 0.5
		dgs.SetStrokeAlpha(255);//set alpha value to 0.5
		rgs = page.AddResGState(dgs);
		content.GSSet(rgs);

		content.GSSave();
		Matrix matUnder = new Matrix( 1, 1, (w-size[0])/2, 770 );
		content.GSSetMatrix(matUnder);
		matUnder.Destroy();

		//build a path object
		Path pathUnder = new Path();
		pathUnder.MoveTo(1, 1);
		pathUnder.LineTo(size[0] - 1, 1);
		pathUnder.ClosePath();

		//fill it
		content.SetStrokeColor(0xff69b4);//set pink color;
		content.SetStrokeWidth(2);//set stroke width
		content.StrokePath(pathUnder);
		content.GSRestore();

		//add content to page
		page.AddContent(content, true);

		content.Destroy();
		page.Close();