/*** 本地pdf文件转png*/

public static intpdf2pngByFile(String target){

String filePath=target;

Document document= newDocument();//System.out.println("开始转png");

try{

document.setFile(filePath);float scale = 1.5f;//缩放比例(大图)//float scale = 0.2f;//缩放比例(小图)

float rotation = 0f;//旋转角度

int pageSize =document.getNumberOfPages();for (int i = 0; i < document.getNumberOfPages(); i++) {

BufferedImage image=(BufferedImage) document.getPageImage(i, GraphicsRenderingHints.SCREEN,

org.icepdf.core.pobjects.Page.BOUNDARY_CROPBOX, rotation, scale);

RenderedImage rendImage=image;//try {//File file = new File("D:/fileUpload/ftpDownload/icepdf_a" + i + ".png");// //这里png作用是：格式是jpg但有png清晰度//ImageIO.write(rendImage, "png", file);//} catch (IOException e) {//e.printStackTrace();//}

try{//WebApplicationContext webApplicationContext = ContextLoader.getCurrentWebApplicationContext();//ServletContext servletContext = webApplicationContext.getServletContext();//File contextPath = new File(servletContext.getRealPath("/"));//项目根目录//File uploadPath = new File(//contextPath.getParentFile().getAbsoluteFile() + File.separator + "uploadFiles");//上传图片存放目录

File uploadPath = newFile(target);

String fileName=getPathWithName(target);

File file1= newFile(fileName);if (!file1.exists()) {

file1.mkdirs();

}//System.out.println("地址=" + uploadPath.getAbsolutePath() + "/icepdf_a" + i + ".png" + "\n");

File file = new File(fileName + "\\" + i + ".png");//这里png作用是：格式是jpg但有png清晰度

ImageIO.write(rendImage, "png", file);

}catch(IOException e) {

e.printStackTrace();

}

image.flush();

}

document.dispose();

System.out.println("png_ok");

System.out.println("pageSize="+pageSize);returnpageSize;

}catch(Exception e1) {

e1.printStackTrace();

}return 0;

}