利用icepdf将pdf文件转为图片

所需jar 包为icepdf-core.jar、icepdf-extra.jar、icepdf-pro-intl.jar、icepdf-pro.jar和icepdf-viewer.jar。

示例代码如下：

package file;

import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

import org.icepdf.core.pobjects.Document;
import org.icepdf.core.pobjects.Page;
import org.icepdf.core.util.GraphicsRenderingHints;

public class ICEPdfToImage {
    
    public static void main(String[] args) {

        String filePath = "e:/test/移动方案.pdf";
        Document document = new Document();
        try {
            document.setFile(filePath);
        } catch (Exception ex) {
        }

        // save page caputres to file.

        float scale = 2f;

        float rotation = 0f;

        // Paint each pages content to an image and write the image to file

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

            BufferedImage image = (BufferedImage)document.getPageImage(i, GraphicsRenderingHints.SCREEN,
                    Page.BOUNDARY_CROPBOX, rotation, scale);
            RenderedImage rendImage = image;

            // capture the page image to file

            try {

                System.out.println("/t capturing page " + i);

                File file = new File("E:\test\移动方案\image_" + i + ".png");

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

            } catch (IOException e) {

                e.printStackTrace();

            }

            image.flush();

        }

        // clean up resources

        document.dispose();

    }

}