Some basic Itext 2.1.7 PdfPCell, PdfPTable methods with various overload options and multiple columns, along with some methods for calculating averages/percentages, formatting numbers.

ItextUtils

import java.awt.Color;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.text.NumberFormat;
import java.util.List;

import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.Font;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfPCell;
import com.lowagie.text.pdf.PdfPRow;
import com.lowagie.text.pdf.PdfPTable;

public class ItextUtils {
	
	public static final Font FONT_LARGE_BOLD 				= new Font(Font.HELVETICA, 14, Font.BOLD);
	public static final Font FONT_STANDARD_BOLD 			= new Font(Font.HELVETICA, 9, Font.BOLD);
	public static final Font FONT_STANDARD_BOLD_UNDERLINE 	= new Font(Font.HELVETICA, 9, Font.BOLD | Font.UNDERLINE);
	public static final Font FONT_STANDARD_BOLD_RED 		= new Font(Font.HELVETICA, 9, Font.BOLD, Color.RED);
	public static final Font FONT_STANDARD 					= new Font(Font.HELVETICA, 9);
	public static final Font FONT_STANDARD_RED 				= new Font(Font.HELVETICA, 9, Font.NORMAL, Color.RED);
	public static final Font FONT_STANDARD_ITALIC 			= new Font(Font.HELVETICA, 9, Font.ITALIC);
	public static final Color COLOR_HEADER_SECONDARY_CELL	= new Color(239,239,239);
	public static final Color COLOR_TABLE_ALT_ROW			= new Color(247,247,247);
	public static final Color COLOR_TABLE_ROW				= new Color(255,255,255); 
	
	
	public static String formatNum(BigDecimal bigDecimal) {
		return NumberFormat.getNumberInstance().format(bigDecimal).toString();
	};
	
	public static String calcAve(BigDecimal compNum, BigDecimal totalNum ) {
		return compNum.divide(totalNum, 1, BigDecimal.ROUND_HALF_UP).toString();
	}
	
	public static String calcPercent(BigDecimal compNum, BigDecimal totalNum ) {
		BigDecimal percentage = compNum.divide(totalNum, 4, RoundingMode.HALF_UP).multiply(new BigDecimal(100));
		percentage = percentage.setScale(1, RoundingMode.HALF_UP);
		return percentage.toString();
	}
	
	
	public static String computePercentageChangeText(List<BigDecimal> compareList, List<String> gameDatesShort) {
		StringBuffer displayString = new StringBuffer();
		
		BigDecimal scale = new BigDecimal(100000000);
		BigDecimal curYearNumber = compareList.get(0).multiply(scale);
		int compareListSize = compareList.size();
		//Init at 1 because assume first year is the year to compare all others to.
		for (int i=1; i < compareListSize; i++) {
			
			BigDecimal compYearNumber = compareList.get(i).multiply(scale);
			
			int year1vsComp = curYearNumber.compareTo(compYearNumber);
			
			BigDecimal diff = curYearNumber.subtract(compYearNumber).abs();
			
			int percentage = diff.divide(compYearNumber, 4, RoundingMode.HALF_UP).multiply(new BigDecimal(100)).intValue();
			
			if (year1vsComp == 0 || percentage == 0) { //comp year number is the same as cur year, so no change.
				displayString.append("No Change over " + gameDatesShort.get(i));
			} else if (year1vsComp == -1) { // comp year number is bigger than cur year, so percent down.
				displayString.append("Down " + percentage + "% over " + gameDatesShort.get(i));
			} else if (year1vsComp == 1) { //comp year number is less than cur year, so percent up.
				displayString.append("Up " + percentage + "% over " + gameDatesShort.get(i));
			}
			
			if (i+1 < compareListSize) displayString.append(", ");
			
		}
		
		return displayString.toString();
	}
	
	public static PdfPTable generateTableSingColPerYear(List<String> gameDatesShort, String headerText, Color headerColor) throws DocumentException {
		int numCols = gameDatesShort.size();
		PdfPTable table = new PdfPTable(numCols);
		table.setWidthPercentage(100);
		
		PdfPCell header = createPdfPCell(headerText, FONT_STANDARD_BOLD, headerColor);
		header.setColspan(numCols);
		table.addCell(header);
		
		for ( String gameDateShort : gameDatesShort) {
			table.addCell(createPdfPCell(gameDateShort, FONT_STANDARD_BOLD));
		}
		
		table.setHeaderRows(2);
		
		return table;
	}
	
	public static PdfPTable generateTableSingColPerYrAndDescCol(List<String> gameDatesShort, String headerText, Color headerColor) throws DocumentException {
		int numCols = gameDatesShort.size() + 1;
		PdfPTable table = new PdfPTable(numCols);
		table.setWidthPercentage(100);
		float[] columnWidths = new float[numCols];
		columnWidths[0] = 1.5f;
		for (int i=1; i < numCols; i++) {
			columnWidths[i] = 1f;
		}
		table.setWidths(columnWidths);
		
		PdfPCell header = createPdfPCell(headerText, FONT_STANDARD_BOLD, headerColor);
		header.setColspan(numCols);
		table.addCell(header);

		table.addCell(createPdfPCell(""));
		
		for ( String gameDateShort : gameDatesShort) {
			table.addCell(createPdfPCell(gameDateShort, FONT_STANDARD_BOLD));
		}
		
		table.setHeaderRows(2);
		
		return table;
	}
	
	public static PdfPTable generateTableSingColPerYrAndDescCol(List<String> gameDatesShort, String headerText, Color headerColor, float[] columnWidths ) throws DocumentException {
		int numCols = gameDatesShort.size() + 1;
		PdfPTable table = new PdfPTable(numCols);
		table.setWidthPercentage(100);
		table.setWidths(columnWidths);
		
		PdfPCell header = createPdfPCell(headerText, FONT_STANDARD_BOLD, headerColor);
		header.setColspan(numCols);
		table.addCell(header);

		table.addCell(createPdfPCell(""));
		
		for ( String gameDateShort : gameDatesShort) {
			table.addCell(createPdfPCell(gameDateShort, FONT_STANDARD_BOLD));
		}
		
		table.setHeaderRows(2);
		
		return table;
	}
	
	public static PdfPTable generateTableDoubColPerYearAndDescCol(List<String> gameDatesShort, String headerText, Color headerColor) throws DocumentException {
		int numCols = gameDatesShort.size() * 2 + 1;
		PdfPTable table = new PdfPTable(numCols);
		table.setWidthPercentage(100);
		float[] columnWidths = new float[numCols];
		columnWidths[0] = 3f;
		for (int i=1; i < numCols; i++) {
			columnWidths[i] = 1f;
		}
		
		table.setWidths(columnWidths);
		PdfPCell header = createPdfPCell(headerText, FONT_STANDARD_BOLD, headerColor);
		header.setColspan(numCols);
		table.addCell(header);

		table.addCell(createPdfPCell(""));
		
		for ( String gameDateShort : gameDatesShort) {
			PdfPCell cell = createPdfPCell(gameDateShort, FONT_STANDARD_BOLD);
			cell.setColspan(2);
			table.addCell(cell);
		}
		
		table.setHeaderRows(2);
		
		return table;
	}
	
	public static PdfPTable generateTableDoubColPerYearAndDescCol(List<String> gameDatesShort, String headerText, Color headerColor, float firstColWidth) throws DocumentException {
		int numCols = gameDatesShort.size() * 2 + 1;
		PdfPTable table = new PdfPTable(numCols);
		table.setWidthPercentage(100);
		float[] columnWidths = new float[numCols];
		columnWidths[0] = firstColWidth;
		for (int i=1; i < numCols; i++) {
			columnWidths[i] = 1f;
		}
		
		table.setWidths(columnWidths);
		PdfPCell header = createPdfPCell(headerText, FONT_STANDARD_BOLD, headerColor);
		header.setColspan(numCols);
		table.addCell(header);

		table.addCell(createPdfPCell(""));
		
		for ( String gameDateShort : gameDatesShort) {
			PdfPCell cell = createPdfPCell(gameDateShort, FONT_STANDARD_BOLD);
			cell.setColspan(2);
			table.addCell(cell);
		}
		
		table.setHeaderRows(2);
		
		return table;
	}
	
	public static PdfPTable generateTableTripColPerYearAndDescCol(List<String> gameDatesShort, String headerText, Color headerColor) throws DocumentException {
		int numCols = gameDatesShort.size() * 3 + 1;
		PdfPTable table = new PdfPTable(numCols);
		table.setWidthPercentage(100);
		float[] columnWidths = new float[numCols];
		columnWidths[0] = 1f;

		for( int i=1; i<gameDatesShort.size()+1; i++ ) {
			columnWidths[i++] = 1.5f;
			columnWidths[i++] = 1f;
			columnWidths[i++] = 1f;
		}
		
		table.setWidths(columnWidths);
		
		PdfPCell header = createPdfPCell(headerText, FONT_STANDARD_BOLD, headerColor);
		header.setColspan(numCols);
		table.addCell(header);

		table.addCell(createPdfPCell(""));
		
		for ( String gameDateShort : gameDatesShort) {
			PdfPCell cell = createPdfPCell(gameDateShort, FONT_STANDARD_BOLD);
			cell.setColspan(3);
			table.addCell(cell);
		}
		
		table.addCell(createPdfPCell("", COLOR_HEADER_SECONDARY_CELL));
		for (int j=0; j<gameDatesShort.size(); j++) {
			table.addCell(createPdfPCell("Total", COLOR_HEADER_SECONDARY_CELL));
			table.addCell(createPdfPCell("First 5\nMin.", COLOR_HEADER_SECONDARY_CELL));
			table.addCell(createPdfPCell("Last 5\nMin.", COLOR_HEADER_SECONDARY_CELL));
		}
		
		table.setHeaderRows(3);
		
		return table;
	}
	
	@SuppressWarnings("unchecked")
	public static PdfPTable generateTableNineColPP(String headerText, Color headerColor) throws DocumentException {
		int numCols = 9;
		PdfPTable table = new PdfPTable(numCols);
		table.setWidthPercentage(100);
		
		float[] columnWidths = new float[numCols];
		columnWidths[0] = 1.5f;
		columnWidths[1] = 1f;
		columnWidths[2] = 1f;
		columnWidths[3] = 1f;
		columnWidths[4] = 0.5f;
		columnWidths[5] = 1.5f;
		columnWidths[6] = 1f;
		columnWidths[7] = 1f;
		columnWidths[8] = 1f;
		
		table.setWidths(columnWidths);
		
		PdfPCell header = createPdfPCell(headerText, FONT_STANDARD_BOLD, headerColor);
		header.setColspan(9);
		table.addCell(header);

		PdfPCell[] secondaryHeaderCells = new PdfPCell[9];
		secondaryHeaderCells[0] = createPdfPCell("", FONT_STANDARD_BOLD, COLOR_TABLE_ALT_ROW);
		secondaryHeaderCells[1] = createPdfPCell("PP Adv.", FONT_STANDARD_BOLD, COLOR_TABLE_ALT_ROW);
		secondaryHeaderCells[2] = createPdfPCell("GP", FONT_STANDARD_BOLD, COLOR_TABLE_ALT_ROW);
		secondaryHeaderCells[3] = createPdfPCell("G", FONT_STANDARD_BOLD, COLOR_TABLE_ALT_ROW);
		secondaryHeaderCells[4] = createPdfPCell("", FONT_STANDARD_BOLD, COLOR_TABLE_ALT_ROW);
		secondaryHeaderCells[5] = createPdfPCell("", FONT_STANDARD_BOLD, COLOR_TABLE_ALT_ROW);
		secondaryHeaderCells[6] = createPdfPCell("PP Adv.", FONT_STANDARD_BOLD, COLOR_TABLE_ALT_ROW);
		secondaryHeaderCells[7] = createPdfPCell("GP", FONT_STANDARD_BOLD, COLOR_TABLE_ALT_ROW);
		secondaryHeaderCells[8] = createPdfPCell("G", FONT_STANDARD_BOLD, COLOR_TABLE_ALT_ROW);
		
		table.getRows().add( new PdfPRow( secondaryHeaderCells ) );
		
		table.setHeaderRows(2);
		
		return table;
	}

	public static PdfPCell createPdfPCell(String text) {
    	PdfPCell cell = new PdfPCell(new Paragraph(text, FONT_STANDARD));
    	cell.setBorderWidth(1f);
    	cell.setBorderColor(Color.GRAY);
    	cell.setPadding(2f);
    	cell.setHorizontalAlignment(Element.ALIGN_CENTER);
    	
    	return cell;
    }
	
	public static PdfPCell createPdfPCell(String text, Font font) {
    	PdfPCell cell = new PdfPCell(new Paragraph(text, font));
    	cell.setBorderWidth(1f);
    	cell.setBorderColor(Color.GRAY);
    	cell.setPadding(2f);
    	cell.setHorizontalAlignment(Element.ALIGN_CENTER);
    	
    	return cell;
    }
    
	public static PdfPCell createPdfPCell(String text, Color color) {
    	PdfPCell cell = new PdfPCell(new Paragraph(text, FONT_STANDARD));
    	cell.setBackgroundColor(color);
    	cell.setBorderWidth(1f);
    	cell.setBorderColor(Color.GRAY);
    	cell.setPadding(2.0f);
    	cell.setHorizontalAlignment(Element.ALIGN_CENTER);
    	
    	return cell;
    }
    
	public static PdfPCell createPdfPCell(String text, Font font, int align) {
    	PdfPCell cell = new PdfPCell(new Paragraph(text, font));
    	cell.setBorderWidth(1f);
    	cell.setBorderColor(Color.GRAY);
    	cell.setPadding(2f);
    	cell.setHorizontalAlignment(align);
    	
    	return cell;
    }
    
	public static PdfPCell createPdfPCell(String text, Font font, Color color) {
    	PdfPCell cell = new PdfPCell(new Paragraph(text, font));
    	cell.setBackgroundColor(color);
    	cell.setBorderWidth(1f);
    	cell.setBorderColor(Color.GRAY);
    	cell.setPadding(2.0f);
    	cell.setHorizontalAlignment(Element.ALIGN_CENTER);
    	
    	return cell;
    }
    
	public static PdfPCell createPdfPCell(String text, Font font, int align, Color color) {
    	PdfPCell cell = new PdfPCell(new Paragraph(text, font));
    	cell.setBackgroundColor(color);
    	cell.setBorderWidth(1f);
    	cell.setBorderColor(Color.GRAY);
    	cell.setPadding(2.0f);
    	cell.setHorizontalAlignment(align);
    	
    	return cell;
    }
    
	public static PdfPCell createPdfPCell(PdfPTable table) {
    	PdfPCell cell = new PdfPCell(table);
    	cell.setPadding(0.0f);
    	cell.setBorderWidth(0.0f);
    	
    	return cell;
    }
    
}