swf 图片转 pdf

pom 依赖

<!-- 操作swf文件 -->
<dependency>
    <groupId>com.flagstone</groupId>
    <artifactId>transform</artifactId>
    <version>3.0.2</version>
</dependency>
<!-- 操作pdf文件 -->
<dependency>
    <groupId>org.apache.pdfbox</groupId>
    <artifactId>pdfbox</artifactId>
    <version>2.0.27</version>
</dependency>

提取 swf 中的图片

package com.xxx.demo.common.util;

import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.DataFormatException;

import javax.imageio.ImageIO;

import com.flagstone.transform.Movie;
import com.flagstone.transform.MovieTag;
import com.flagstone.transform.image.DefineImage;
import com.flagstone.transform.image.DefineImage2;
import com.flagstone.transform.image.DefineJPEGImage;
import com.flagstone.transform.image.DefineJPEGImage2;
import com.flagstone.transform.image.DefineJPEGImage3;
import com.flagstone.transform.image.DefineJPEGImage4;
import com.flagstone.transform.util.image.BufferedImageEncoder;

public final class SwfUtils {

	private SwfUtils () {}
	
	public static List<BufferedImage> querySwfImages (final File file) throws DataFormatException, IOException {
		Movie movie = new Movie();
		movie.decodeFromFile(file);
		return querySwfImages(movie);
	}
	
	public static List<BufferedImage> querySwfImages (final URL url) throws DataFormatException, IOException {
		Movie movie = new Movie();
		movie.decodeFromUrl(url);
		return querySwfImages(movie);
	}
	
	public static List<BufferedImage> querySwfImages (final InputStream stream) throws DataFormatException, IOException {
		Movie movie = new Movie();
		movie.decodeFromStream(stream);
		return querySwfImages(movie);
	}
	
	private static List<BufferedImage> querySwfImages (Movie movie) throws DataFormatException, IOException {
		List<BufferedImage> imageList = new ArrayList<>();
		List<MovieTag> list = movie.getObjects();
		for (MovieTag movieTag : list) {
			BufferedImage bi = getSwfImage(movieTag);
			if (bi != null) {
				imageList.add(bi);
			}
		}
		return imageList;
	}
	
	private static BufferedImage getSwfImage (MovieTag movieTag) throws DataFormatException, IOException {
		BufferedImage bi = null;
		if (movieTag instanceof DefineImage) {
			BufferedImageEncoder imageEncoder = new BufferedImageEncoder();
			imageEncoder.setImage((DefineImage) movieTag);
			bi = imageEncoder.getBufferedImage();
		} else if (movieTag instanceof DefineImage2) {
			BufferedImageEncoder imageEncoder = new BufferedImageEncoder();
			imageEncoder.setImage((DefineImage2) movieTag);
			bi = imageEncoder.getBufferedImage();
		} else if (movieTag instanceof DefineJPEGImage) {
			try (
					ByteArrayInputStream bis = new ByteArrayInputStream(((DefineJPEGImage) movieTag).getImage());
					) {
				bi = ImageIO.read(bis);
			}
		} else if (movieTag instanceof DefineJPEGImage2) {
			try (
					ByteArrayInputStream bis = new ByteArrayInputStream(((DefineJPEGImage2) movieTag).getImage());
					) {
				bi = ImageIO.read(bis);
			}
		} else if (movieTag instanceof DefineJPEGImage3) {
			try (
					ByteArrayInputStream bis = new ByteArrayInputStream(((DefineJPEGImage3) movieTag).getImage());
					) {
				bi = ImageIO.read(bis);
			}
		} else if (movieTag instanceof DefineJPEGImage4) {
			try (
					ByteArrayInputStream bis = new ByteArrayInputStream(((DefineJPEGImage4) movieTag).getImage());
					) {
				bi = ImageIO.read(bis);
			}
		}
		return bi;
	}

}

多张图片转为 pdf

package com.xxx.demo.common.util;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.common.PDRectangle;
import org.apache.pdfbox.pdmodel.graphics.image.JPEGFactory;
import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;

public final class PdfUtils {

	private PdfUtils () {}
	
	public static void image2pdf (List<BufferedImage> imageList, File outFile) throws IOException {
		if (imageList.isEmpty()) {
			throw new IOException("image not found");
		}
		try (
				PDDocument doc = new PDDocument();
				) {
			doc.save(outFile);
			image2pdf(doc, imageList);
			doc.save(outFile);
		}
	}
	
	public static void image2pdf (List<BufferedImage> imageList, OutputStream out) throws IOException {
		if (imageList.isEmpty()) {
			throw new IOException("image not found");
		}
		try (
				PDDocument doc = new PDDocument();
				) {
			image2pdf(doc, imageList);
			doc.save(out);
		}
	}
	
	
	private static void image2pdf (final PDDocument doc, List<BufferedImage> imageList) throws IOException {
		doc.setAllSecurityToBeRemoved(true);
		for (BufferedImage image : imageList) {
			PDImageXObject pdImage = JPEGFactory.createFromImage(doc, image, 0.8f);
			image.flush();
			PDPage page = new PDPage(PDRectangle.A4);
			try (
					PDPageContentStream contents = new PDPageContentStream(doc, page);
					) {
				int width = pdImage.getWidth();
				int height = pdImage.getHeight();
				float pageWidth = PDRectangle.A4.getWidth();
				float pageHeight = PDRectangle.A4.getHeight();
				float[] bound = getBound(width, height, pageWidth, pageHeight);
				contents.drawImage(pdImage, bound[0], bound[1], bound[2], bound[3]);
			}
			doc.addPage(page);
		}
	}
	
	private static float[] getBound (int width, int height, float pageWidth, float pageHeight) {
		float[] bound = new float[] {0.0f, 0.0f, 0.0f, 0.0f};
		float wh = width * 1.0f / height;
		float pwh = pageWidth * 1.0f / pageHeight;
		if (Math.abs(wh - pwh) < 0.02f) {
			bound[0] = 0.0f;
			bound[1] = 0.0f;
			bound[2] = pageWidth;
			bound[3] = pageHeight;
		} else if (wh - pwh > 0) {
			float h = pageWidth / width * height;
			bound[0] = 0.0f;
			bound[1] = Math.max(pageHeight / 2 - h / 2, 0.0f);
			bound[2] = pageWidth;
			bound[3] = Math.min(h, pageHeight);
		} else {
			float w = pageHeight / height * width;
			bound[0] = Math.max(pageWidth / 2 - w / 2, 0.0f);
			bound[1] = 0.0f;
			bound[2] = Math.min(w, pageWidth);
			bound[3] = pageHeight;
		}
		return bound;
	}

}

swf 中的图片转 pdf

package com.xxx.demo.common.util;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
import java.util.zip.DataFormatException;

public final class Swf2PdfUtils {
	
	private Swf2PdfUtils () {}

	public static void swfImage2Pdf (File swfFile, File pdfFile) throws DataFormatException, IOException {
		List<BufferedImage> images = SwfUtils.querySwfImages(swfFile);
		PdfUtils.image2pdf(images, pdfFile);
	}
	
	public static void swfImage2Pdf (File swfFile, OutputStream out) throws DataFormatException, IOException {
		List<BufferedImage> images = SwfUtils.querySwfImages(swfFile);
		PdfUtils.image2pdf(images, out);
	}
	
	public static void swfImage2Pdf (InputStream input, File pdfFile) throws DataFormatException, IOException {
		List<BufferedImage> images = SwfUtils.querySwfImages(input);
		PdfUtils.image2pdf(images, pdfFile);
	}
	
	public static void swfImage2Pdf (InputStream input, OutputStream out) throws DataFormatException, IOException {
		List<BufferedImage> images = SwfUtils.querySwfImages(input);
		PdfUtils.image2pdf(images, out);
	}

}

测试

public static void main(String[] args) throws DataFormatException, IOException {
	File swFile = new File("D:/ceshi", "dabf077a8c354a74.swf");
	File pdfFile = new File("D:/ceshi", "dabf077a8c354a74.pdf");
	Swf2PdfUtils.swfImage2Pdf(swFile, pdfFile);
}