How to extract images from PDF file in Java (Tutorial)

PDF files are not directly supported by Java, you will need external Java PDF libraries. This tutorial shows you how to extract images from a PDF file in 5 simple steps using the JPedal Java PDF library.

Extracting Image from PDF using Java

1. Add JPedal to your class or module path (download the trial jar).
2. Create a File handle, InputStream or URL pointing to the PDF file
3. Include a password if file password protected
4. Open the PDF file
5. Iterate over the images on each page
6. Close the PDF file

and the Java code to extract images from a PDF Document…

File file = new File("/path/to/document.pdf"));

ExtractImages extract = new ExtractImages(file);

//extract.setPassword("password");

if (extract.openPDFFile()) {

  int pageCount = extract.getPageCount();

  for (int page = 1; page <= pageCount; page++) {

    int imagesOnPageCount = extract.getImageCount(page);

    for (int image = 0; image < imagesOnPageCount; image++) {

      BufferedImage img = extract.getImage(page, image, true);

    }

  }

}

extract.closePDFfile();

Related tutorials

If you are looking to use JPedal to extract images from PDF files, we recommend you start with these tutorials:-

• How to extract images programmatically in Java
• How to extract clipped images programmatically in Java

Viewer viewer = new Viewer();
viewer.setupViewer();
viewer.executeCommand(ViewerCommands.OPENFILE, "pdfFile.pdf");

//Convenience static method (see class for additional options)
ExtractClippedImages.writeAllClippedImagesToDir("inputFileOrDirectory", "outputDir", "outputImageFormat", new String[] {"imageHeightAsFloat", "subDirectoryForHeight"});

//Convenience static method (see class for additional options)
ExtractTextAsWordList.writeAllWordlistsToDir("inputFileOrDirectory", "outputDir", -1);

//Convenience static method (see class for additional options)
ArrayList resultsForPages = FindTextInRectangle.findTextOnAllPages("/path/to/file.pdf", "textToFind");

PrintPdfPages print = new PrintPdfPages("C:/pdfs/mypdf.pdf");

if (print.openPDFFile()) {
    print.printAllPages("Printer Name");
}

//Convenience static method (see class for additional options)
ExtractClippedImages.writeAllClippedImagesToDir("inputFileOrDirectory", "outputDir", "outputImageFormat", new String[] {"imageHeightAsFloat", "subDirectoryForHeight"});