Convert PDF to JPEG2000
JPedal provides several methods to allow easy conversion of a PDF file or directory of PDF files into JPEG2000. Java examples use the Jpeg2000EncoderOptions classes.
Convert PDF to JPG2000 from Command Line or another language
java -jar jpedal.jar --convert "inputFileOrDir" "outputDir" jpx
Convert PDF to JPG2000 in Java
ConvertPagesToImages.
writeAllPagesAsImagesToDir("inputFileOrDir", "outputDir" , "jpx", 1.33f);
Convert PDF to JPG2000 in Java with control over the image output
ConvertPagesToImages convert = new ConvertPagesToImages("/path/file.pdf");
if (convert.openPDFFile()) {
try {
for (int page = 1; page <= convert.getPageCount(); page++) {
BufferedImage bi = convert.getPageAsImage(page);
File out = new File("/path/to/output/" + page + ".jpx");
//setters to control output (example with compression)
Jpeg2000EncoderOptions options = new Jpeg2000EncoderOptions();
options.setQuality(90); //Default is 75. No compression is 100
JDeli.write(bi, options, out);
}
} catch (PdfException | IOException e) {
e.printStackTrace();
}
}
convert.closePDFfile();
Convert PDF to JPG2000 in Java with a password-protected PDF file
ConvertPagesToImages convert = new ConvertPagesToImages("/path/file.pdf");
convert.setPassword("password");
if (convert.openPDFFile()) {
try {
for (int page = 1; page <= convert.getPageCount(); page++) {
BufferedImage bi = convert.getPageAsImage(page);
File out = new File("/path/to/output/" + page + ".jpx");
JDeli.write(bi, OutputFormat.JPEG2000, out);
}
} catch (PdfException | IOException e) {
e.printStackTrace();
}
}
convert.closePDFfile();
If you are looking for upscaling or more complex control over the PDF to JPEG2000 conversion, ConvertPagesToHiResImages class has lots of additional options