Java Image.scaleAbsolute方法代码示例

import com.itextpdf.text.Image; //导入方法依赖的package包/类
public static void writeSimplePdf() throws Exception{
			//1.新建document对象
			//第一个参数是页面大小。接下来的参数分别是左、右、上和下页边距。
			Document document = new Document(PageSize.A4, 50, 50, 50, 50);
			//2.建立一个书写器(Writer)与document对象关联，通过书写器(Writer)可以将文档写入到磁盘中。
			//创建 PdfWriter 对象 第一个参数是对文档对象的引用，第二个参数是文件的实际名称，在该名称中还会给出其输出路径。
			PdfWriter writer = PdfWriter.getInstance(document, 	new FileOutputStream("D:\\Documents\\ITextTest.pdf"));
			//3.打开文档
			document.open();		
			//4.向文档中添加内容
			//通过 com.lowagie.text.Paragraph 来添加文本。可以用文本及其默认的字体、颜色、大小等等设置来创建一个默认段落
			BaseFont bfChinese = BaseFont.createFont("STSong-Light","UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
			Font fontChinese = new Font(bfChinese, 22, Font.BOLD, BaseColor.BLACK);
			
			document.add(new Paragraph("sdfsdfsd全是中文显示了没.fsdfsfs",fontChinese));
			document.add(new Paragraph("Some more text on the 	first page with different color and font type.",
					FontFactory.getFont(FontFactory.COURIER, 14, Font.BOLD, new BaseColor(255, 150, 200))));
			Paragraph pragraph=new Paragraph("你这里有中亠好", fontChinese);
			document.add(pragraph);
			
			//图像支持格式 GIF, Jpeg, PNG, wmf
			Image gif = Image.getInstance("F:/keyworkspace/survey/WebRoot/images/logo/snlogo.png");
			gif.setBorder(5);
			gif.scaleAbsolute(30,30);
			gif.setAlignment(Image.RIGHT|Image.TEXTWRAP);
			document.add(gif);
			Paragraph pragraph11=new Paragraph("你这里有中亠好你这里有中亠好你这里有中亠好你这里有中亠好你这里有中亠好你这里有中亠好你这里有中亠好你这里有中亠好你这里有中亠好你这里有中亠好", fontChinese);
			document.add(pragraph11);
			
			Image gif15 = Image.getInstance("F:/keyworkspace/survey/WebRoot/images/logo/snlogo.png");
//			gif15.setBorder(50);
			gif15.setBorder(Image.BOX);
			gif15.setBorderColor(BaseColor.RED);
//			gif15.setBorderColorBottom(borderColorBottom)
			gif15.setBorderWidth(1);
			gif15.scalePercent(50);
			document.add(gif15);
			//5.关闭文档
			document.close();
		}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
/**
 * Adds a header to every page
 * @see com.itextpdf.text.pdf.PdfPageEventHelper#onEndPage(
 *      com.itextpdf.text.pdf.PdfWriter, com.itextpdf.text.Document)
 */
public void onEndPage(PdfWriter writer, Document document) {
	PdfPTable table = new PdfPTable(3);
	try {
		table.setWidths(new int[]{40,5,10});
		table.setTotalWidth(100);
		table.getDefaultCell().setBorder(Rectangle.NO_BORDER);
		table.getDefaultCell().setHorizontalAlignment(Element.ALIGN_RIGHT);
		Font font=new Font(chineseFont,8);
		font.setColor(new BaseColor(55,55,55));
		Paragraph paragraph=new Paragraph("第   "+writer.getPageNumber()+" 页   共",font);
		paragraph.setAlignment(Element.ALIGN_RIGHT);
		table.addCell(paragraph);
		Image img=Image.getInstance(total);
		img.scaleAbsolute(28, 28);
		PdfPCell cell = new PdfPCell(img);
		cell.setBorder(Rectangle.NO_BORDER);
		cell.setHorizontalAlignment(Element.ALIGN_CENTER);
		table.addCell(cell);
		PdfPCell c = new PdfPCell(new Paragraph("页",font));
		c.setHorizontalAlignment(Element.ALIGN_LEFT);
		c.setBorder(Rectangle.NO_BORDER);
		table.addCell(c);
		float center=(document.getPageSize().getWidth())/2-120/2;
		table.writeSelectedRows(0, -1,center,30, writer.getDirectContent());
	}
	catch(DocumentException de) {
		throw new ExceptionConverter(de);
	}
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
/**
 * Create itextPdf image object with visitor signature.
 * 
 * @param file 
 * @param imgHeight
 * @param imgWidth
 * @return com.itextpdf.text.Image
 */
public static Image createNDAImage(File file, int imgHeight, int imgWidth) {
	try {
		Image image = Image.getInstance(file.getAbsolutePath());
		if (imgHeight!=0 && imgWidth!=0) {
			image.scaleAbsolute(imgWidth, imgHeight);
		} else {
			image.scaleAbsolute(230, 140);
		} image.setAbsolutePosition(70, 450);
		return image;
	} catch (BadElementException | IOException e) {
		logger.error("Exception while creating image for NDA file. ",e);
		return null;
	}
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
PdfPCell getPiccell(int w, int h)
{
    try
    {
        Image image = Image.getInstance("src/test/resources/mkl/testarea/itext5/content/2x2colored.png");
        image.scaleAbsolute(w, h);
        return new PdfPCell(image);
    }
    catch (BadElementException | IOException e)
    {
        throw new RuntimeException(e);
    }
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
public void savePDFReport(String filename) {

	Document document = new Document();
	try
	{
		
		// if you want to save a pdf file using bigbuffer do it here
		PdfWriter.getInstance(document, new FileOutputStream(filename));
		document.open();
		document.add(new Paragraph(para1.get(0)));
		printTableAct.get(0).setWidthPercentage(90);
		printTableAct.get(0).setSpacingBefore(20f);
		printTableAct.get(0).setSpacingAfter(20f);
		document.add(printTableAct.get(0));
		// document.newPage();
		document.add(new Paragraph(para2.get(0)));
		printTableSim.get(0).setWidthPercentage(90);
		printTableSim.get(0).setSpacingBefore(20f);
		printTableSim.get(0).setSpacingAfter(20f);
		document.add(printTableSim.get(0));
		
		// the charts are being saved from an array list to the files
		for (int i = 0; i < chartList.size(); i++)
		{
			try
			{
				
				File f2 = File.createTempFile("chart" + i, ".png");
				ChartUtilities.saveChartAsPNG(f2, chartList.get(i).getChart(), 800, 500);
				Image image = Image.getInstance(f2.getAbsolutePath());
				float fWidth = 0.6f * 800;
				float fHeight = 0.6f * 500;
				image.scaleAbsolute(fWidth, fHeight);
				document.add(image);
				f2.delete();
				
			}
			catch (IOException ex)
			{
				System.err.println(ex.getLocalizedMessage());
			}
		}
	}
	catch (Exception e)
	{
		
	}
	
	document.close();
	
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
private void convertTiff(ByteArrayOutputStream outputStream, ByteArrayInputStream inStream) throws IOException, DocumentException, BadElementException, MalformedURLException 
{
	TIFFDecodeParam param = null;
	ImageDecoder decoder = ImageCodec.createImageDecoder("tiff", inStream, param);	
	System.out.println("Convert TIFF file: Found " + decoder.getNumPages() + " pages");
	
	ArrayList<ByteArrayOutputStream> imagesStream = new ArrayList<ByteArrayOutputStream>();
	
	int pages = decoder.getNumPages();
	for (int i = 0; i < pages; i++) 
	{
		RenderedImage render = decoder.decodeAsRenderedImage(i);
		PlanarImage op = new NullOpImage(render, null, null, OpImage.OP_IO_BOUND);
		BufferedImage imageBuffer = op.getAsBufferedImage();
		
		ByteArrayOutputStream os = new ByteArrayOutputStream();
		ImageIO.write(imageBuffer, "jpg", os);
		
		imagesStream.add(os);
	}
	
	if (imagesStream.size() > 0)
	{						
		Document document = new Document(PageSize.A4.rotate());
		PdfWriter writer = PdfWriter.getInstance(document, outputStream);
		
		document.open();
		
		Iterator<ByteArrayOutputStream> iterator = imagesStream.iterator();
		while (iterator.hasNext()) 
	    {
			document.newPage();
			Image jpg = Image.getInstance(iterator.next().toByteArray());
			jpg.scaleAbsolute(document.getPageSize().getWidth(), document.getPageSize().getHeight());
			document.add(jpg);
			
		}
		
		document.close();
		writer.flush();
		writer.close();
	}
}
 

import com.itextpdf.text.Image; //导入方法依赖的package包/类
private void createImages(Document document) throws MalformedURLException, IOException, DocumentException{
		ImageManager manager=new ImageManager(context);
		Image frontImage=Image.getInstance(manager.getFilepathFromUrl(frontImageName));
//		Image frontImage=Image.getInstance(front);
		
		frontImage.scaleAbsolute(pageWidth, pageHeight);
		
		document.add(frontImage);
        
		document.newPage();
		
//		Image backImage=Image.getInstance(back);
        
		Image backImage=Image.getInstance(manager.getFilepathFromUrl(backImageName));
//		
//		Log.e("Print", manager.getFilepathFromUrl(backImageName));
		backImage.scaleAbsolute(pageWidth, pageHeight);
		
		document.add(backImage);	

	}