JavaでPDFを画像に変換

				
					ConvertPagesToImages convert = new ConvertPagesToImages("/path/to/file.pdf");
try {
    if (convert.openPDFFile()) {
        for (int page = 1; page <= convert.getPageCount(); page++) {
            final BufferedImage bi = convert.getPageAsImage(page);
            final File out = new File("/path/to/output/" + page + ".tiff");
            // 出力をコントロールするセッター
            final TiffEncoderOptions options = new TiffEncoderOptions();
            options.setCompressionFormat(TiffCompressionFormat.DEFLATE);
            options.setResolutionUnit(TiffResolutionUnit.INCH);
            options.setXResolution(300);
            options.setYResolution(300);
            JDeli.write(bi, options, out);
        }
    }
} catch (PdfException | IOException e) {
    e.printStackTrace();
} catch (Exception e) {
    e.printStackTrace();
}
convert.closePDFfile();