//---------------------------------------------------------------------------------------
// Copyright (c) 2001-2012 by PDFTron Systems Inc. All Rights Reserved.
// Consult legal.txt regarding legal and license information.
//---------------------------------------------------------------------------------------

import pdftron.PDF.*;
import pdftron.SDF.SDFDoc;

public class StamperTest 
{
	//---------------------------------------------------------------------------------------
	// The following sample shows how to add new content (or watermark) PDF pages
	// using 'pdftron.PDF.Stamper' utility class. 
	//
	// Stamper can be used to PDF pages with text, images, or with other PDF content 
	// in only a few lines of code. Although Stamper is very simple to use compared 
	// to ElementBuilder/ElementWriter it is not as powerful or flexible. In case you 
	// need full control over PDF creation use ElementBuilder/ElementWriter to add 
	// new content to existing PDF pages as shown in the ElementBuilder sample project.
	//---------------------------------------------------------------------------------------
	public static void main(String[] args)
	{		
		String input_path = "../../TestFiles/";
		String output_path = "../../TestFiles/Output/";
		String input_filename = "newsletter.pdf";	

		PDFNet.initialize();

		//--------------------------------------------------------------------------------
		// Example 1) Add text stamp to all pages, then remove text stamp from odd pages. 
		try
		{
			PDFDoc doc = new PDFDoc(input_path + input_filename);			
			doc.initSecurityHandler();			
			Stamper s = new Stamper(Stamper.e_relative_scale, 0.5, 0.5);
			s.setAlignment(Stamper.e_horizontal_center, Stamper.e_vertical_center);
			ColorPt red = new ColorPt(1, 0, 0); // set text color to red
			s.setFontColor(red);
			String msg = "If you are reading this\nthis is an even page";
			PageSet ps = new PageSet(1, doc.getPageCount());
			s.stampText(doc, msg, ps);
			//delete all text stamps in even pages
			PageSet ps1 = new PageSet(1, doc.getPageCount(), PageSet.e_odd);
			Stamper.deleteStamps(doc, ps1);

			doc.save(output_path + input_filename + ".ex1.pdf", SDFDoc.e_linearized, null);			
		}
		catch (Exception e)
		{
			e.printStackTrace();
			return;
		}		

		//--------------------------------------------------------------------------------
		// Example 2) Add Image stamp to first 2 pages. 
		try
		{
			PDFDoc doc = new PDFDoc(input_path + input_filename);
			doc.initSecurityHandler();

			Stamper s = new Stamper(Stamper.e_relative_scale, .05, .05);
			Image img = Image.create(doc, input_path + "peppers.jpg");
			s.setSize(Stamper.e_relative_scale, 0.5, 0.5);
			//set position of the image to the center, left of PDF pages
			s.setAlignment(Stamper.e_horizontal_left, Stamper.e_vertical_center);
			ColorPt pt = new ColorPt(0, 0, 0, 0);
			s.setFontColor(pt);
			s.setRotation(180);
			s.setAsBackground(false);
			//only stamp first 2 pages
			PageSet ps = new PageSet(1, 2);
			s.stampImage(doc, img, ps);

			doc.save(output_path + input_filename + ".ex2.pdf", SDFDoc.e_linearized, null);
		}
		catch (Exception e)
		{
			e.printStackTrace();
			return;
		}		

		//--------------------------------------------------------------------------------
		// Example 3) Add Page stamp to all pages. 
		try
		{
			PDFDoc doc = new PDFDoc(input_path + input_filename);
			doc.initSecurityHandler();

			PDFDoc fish_doc = new PDFDoc(input_path + "fish.pdf");
			fish_doc.initSecurityHandler();

			Stamper s = new Stamper(Stamper.e_relative_scale, 0.5, 0.5);
			Page src_page = fish_doc.getPage(1);		 
			Rect page_one_crop = src_page.getCropBox();
			// set size of the image to 10% of the original while keep the old aspect ratio
			s.setSize(Stamper.e_absolute_size, page_one_crop.getWidth() * 0.1, -1);
			s.setOpacity(0.4);
			s.setRotation(-67);
			//put the image at the bottom right hand corner
			s.setAlignment(Stamper.e_horizontal_right, Stamper.e_vertical_bottom);
			PageSet ps = new PageSet(1, doc.getPageCount());
			s.stampPage(doc, src_page, ps);

			doc.save(output_path + input_filename + ".ex3.pdf", SDFDoc.e_linearized, null);
		}
		catch (Exception e)
		{
			e.printStackTrace();
			return;
		}

		//--------------------------------------------------------------------------------
		// Example 4) Add Image stamp to first 20 odd pages.
		try
		{
			PDFDoc doc = new PDFDoc(input_path + input_filename);
			doc.initSecurityHandler();

			Stamper s = new Stamper(Stamper.e_absolute_size, 20, 20);
			s.setOpacity(1);
			s.setRotation(45);                
			s.setAsBackground(true);
			s.setPosition(30, 40);
			Image img = Image.create(doc, input_path + "peppers.jpg");
			PageSet ps = new PageSet(1, 20, PageSet.e_odd);
			s.stampImage(doc, img, ps);

			doc.save(output_path + input_filename + ".ex4.pdf", SDFDoc.e_linearized, null);
		}
		catch (Exception e)
		{
			e.printStackTrace();
			return;
		}

		//--------------------------------------------------------------------------------
		// Example 5) Add text stamp to first 20 even pages
		try
		{
			PDFDoc doc = new PDFDoc(input_path + input_filename);
			doc.initSecurityHandler();

			Stamper s = new Stamper(Stamper.e_relative_scale, .05, .05);
			s.setPosition(0, 0);
			s.setOpacity(0.7);
			s.setRotation(90);
			s.setSize(Stamper.e_font_size, 80, -1);
			s.setTextAlignment(Stamper.e_align_center);
			PageSet ps = new PageSet(1, 20, PageSet.e_even);
			s.stampText(doc, "Goodbye\nMoon", ps);

			doc.save(output_path + input_filename + ".ex5.pdf", SDFDoc.e_linearized, null);
		}
		catch (Exception e)
		{
			e.printStackTrace();
			return;
		}

		//--------------------------------------------------------------------------------
		// Example 6) Add first page as stamp to all even pages
		try
		{
			PDFDoc doc = new PDFDoc(input_path + input_filename);
			doc.initSecurityHandler();

			PDFDoc fish_doc = new PDFDoc(input_path + "fish.pdf");
			fish_doc.initSecurityHandler();

			Stamper s = new Stamper(Stamper.e_relative_scale, 0.3, 0.3);
			s.setOpacity(1);                
			s.setRotation(270);
			s.setAsBackground(true);
			s.setPosition(0.5, 0.5, true);
			s.setAlignment(Stamper.e_horizontal_left, Stamper.e_vertical_bottom);
			Page page_one = fish_doc.getPage(1);
			PageSet ps = new PageSet(1, doc.getPageCount(), PageSet.e_even);
			s.stampPage(doc, page_one, ps);

			doc.save(output_path + input_filename + ".ex6.pdf", SDFDoc.e_linearized, null);
		}
		catch (Exception e)
		{
			e.printStackTrace();
			return;
		}

		//--------------------------------------------------------------------------------
		// Example 7) Add image stamp at top right corner in every pages
		try
		{
			PDFDoc doc = new PDFDoc(input_path + input_filename);
			doc.initSecurityHandler();

			Stamper s = new Stamper(Stamper.e_relative_scale, .1, .1);
			s.setOpacity(0.8);
			s.setRotation(135);
			s.setAsBackground(false);
			s.showsOnPrint(false);
			s.setAlignment(Stamper.e_horizontal_left, Stamper.e_vertical_top);
			s.setPosition(10, 10);

			Image img = Image.create(doc, input_path + "peppers.jpg");
			PageSet ps = new PageSet(1, doc.getPageCount(), PageSet.e_all);
			s.stampImage(doc, img, ps);

			doc.save(output_path + input_filename + ".ex7.pdf", SDFDoc.e_linearized, null);
		}
		catch (Exception e)
		{
			e.printStackTrace();
			return;
		}

		//--------------------------------------------------------------------------------
		// Example 8) Add Text stamp to first 2 pages, and image stamp to first page.
		//          Because text stamp is set as background, the image is top of the text
		//          stamp. Text stamp on the first page is not visible.
		try
		{
			PDFDoc doc = new PDFDoc(input_path + input_filename);
			doc.initSecurityHandler();

			Stamper s = new Stamper(Stamper.e_relative_scale, 0.07, -0.1);
			s.setAlignment(Stamper.e_horizontal_right, Stamper.e_vertical_bottom);
			s.setAlignment(Stamper.e_horizontal_center, Stamper.e_vertical_top);
			s.setFont(Font.create(doc, Font.e_courier, true));
			ColorPt red = new ColorPt(1, 0, 0, 0);
			s.setFontColor(red); //set color to red
			s.setTextAlignment(Stamper.e_align_right);
			s.setAsBackground(true); //set text stamp as background
			PageSet ps = new PageSet(1, 2);
			s.stampText(doc, "This is a title!", ps);

			Image img = Image.create(doc, input_path + "peppers.jpg");
			s.setAsBackground(false); // set image stamp as foreground
			PageSet first_page_ps = new PageSet(1);
			s.stampImage(doc, img, first_page_ps);

			doc.save(output_path + input_filename + ".ex8.pdf", SDFDoc.e_linearized, null);
		}
		catch (Exception e)
		{
			e.printStackTrace();
			return;
		}

		PDFNet.terminate();		
	}
}