java jp2转pdf
时间: 2023-11-11 13:00:10 浏览: 59
您可以使用Java Advanced Imaging API来将JP2文件转换为PDF文件。以下是一个简单的示例代码:
```java
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import javax.imageio.ImageIO;
import com.sun.media.jai.codec.ImageCodec;
import com.sun.media.jai.codec.ImageDecoder;
import com.sun.media.jai.codec.ImageEncoder;
import com.sun.media.jai.codec.JPEGEncodeParam;
import com.sun.media.jai.codec.PDFEncodeParam;
import com.sun.media.jai.codec.PNGEncodeParam;
import com.sun.media.jai.codec.TIFFEncodeParam;
import com.sun.media.jai.codecimpl.JPEGImageEncoder;
import com.sun.media.jai.codecimpl.PDFImageEncoder;
import com.sun.media.jai.codecimpl.PNGImageEncoder;
import com.sun.media.jai.codecimpl.TIFFImageEncoder;
public class JP2ToPDFConverter {
public static void main(String[] args) throws Exception {
// Input JP2 file
File inputFile = new File("input.jp2");
// Output PDF file
File outputFile = new File("output.pdf");
// Read JP2 file using JAI ImageDecoder
ImageDecoder jp2Decoder = ImageCodec.createImageDecoder("JPEG2000", inputFile, null);
BufferedImage jp2Image = jp2Decoder.decodeAsBufferedImage();
// Create PDFEncodeParam
PDFEncodeParam pdfEncodeParam = new PDFEncodeParam();
pdfEncodeParam.setCompressionMode(PDFEncodeParam.MODE_EXPLICIT);
pdfEncodeParam.setCompressionType("JPEG");
pdfEncodeParam.setJPEGQuality(0.8f);
// Write PDF file using JAI ImageEncoder
FileOutputStream outputStream = new FileOutputStream(outputFile);
ImageEncoder pdfEncoder = ImageCodec.createImageEncoder("PDF", outputStream, pdfEncodeParam);
pdfEncoder.encode(jp2Image);
outputStream.close();
}
}
```
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