Got java code from a blog. http://dipakpardesi.blogspot.in/2010/01/tiff-page-extraction-using-jai-java_27.html

For this initially we need to import few java jars of JAI API. After import restart the server.

1.sun-jai_codec.jar

2. sun-jai_core.jar

Java Code:

Need to Import Packages:
java.awt.image.RenderedImage;
java.awt.image.renderable.ParameterBlock;
javax.media.jai.JAI;
javax.media.jai.RenderedOp;
com.sun.media.jai.codec.FileSeekableStream;
com.sun.media.jai.codec.ImageCodec;
com.sun.media.jai.codec.ImageDecoder;
com.sun.media.jai.codec.SeekableStream;
java.io.File;
java.io.IOException;

(SUN Microsystems offers detailed API of above mentioned classes.  Use Google to search related API on SUN site for detailed information.)

Source Code:
/* 
 * Method for extraction 
 * tiffFilePath: path of input tiff image
 * outputFileType: ouput image type (for color
 * image “jpeg” and for bilevel image “png”)
 */
public static void extractMultiPageTiff(String tiffFilePath,
    String outputFileType) throws IOException {

    /*
     * create object of RenderedIamge to produce
     * image data in form of Rasters
     */
    RenderedImage renderedImage[], page;
    File file = new File(tiffFilePath);
    /*
     * SeekabaleStream is use for taking input from file.
     * FileSeekableStream is not committed part of JAI API.
     */
    SeekableStream seekableStream = new FileSeekableStream(file);
    ImageDecoder imageDecoder = ImageCodec.createImageDecoder("tiff",
            seekableStream, null);
    renderedImage = new RenderedImage[imageDecoder.getNumPages()];

    /* count no. of pages available inside input tiff file */
    int count = 0;
    for (int i = 0; i < imageDecoder.getNumPages(); i++) {
        renderedImage[i] = imageDecoder.decodeAsRenderedImage(i);
        count++;
    }

    /* set output folder path */
    String outputFolderName;
    String[] temp = null;
    temp = tiffFilePath.split("\\.");
    outputFolderName = temp[0];
    /* 
     * create file object of output folder
     * and make a directory 
     */
    File fileObjForOPFolder = new File(outputFolderName);
    fileObjForOPFolder.mkdirs();

    /* 
     * extract no. of image available inside 
     * the input tiff file 
     */
    for (int i = 0; i < count; i++) {
        page = imageDecoder.decodeAsRenderedImage(i);
        File fileObj = new File(outputFolderName 
                + "/" + (i + 1) + ".jpg");
        /* 
         * ParameterBlock create a generic 
         * interface for parameter passing 
         */
        ParameterBlock parameterBlock = new ParameterBlock();
        /* add source of page */
        parameterBlock.addSource(page);
        /* add o/p file path */
        parameterBlock.add(fileObj.toString());
        /* add o/p file type */
        parameterBlock.add(outputFileType);
        /* create output image using JAI filestore */
        RenderedOp renderedOp = JAI.create("filestore",
                parameterBlock);
        renderedOp.dispose();
    }
}