Java PDF to Image conversion (Tutorial)

Do you need to convert your PDF files to images in Java? PDF files are not directly supported in Java but you can solve this problem very easily with a third-party Java PDF library.

This tutorial shows you how to convert PDF to Image using Java with our popular JPedal Java PDF library. You can convert a PDF file to a BufferedImage in Java or save it directly to BMP, GIF, HEIC, JPEG, JPEG2000, PNG, TIFF, or WebP.

Java PDF to image conversion (Method 1 – fast and standard quality image)

1. Download JPedal 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 pages
6. Close the PDF file

and here is the Java code to convert PDF to Image…

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

ConvertPagesToImages extract=new ConvertPagesToImages(file);

//extract.setPassword("password");

if (extract.openPDFFile()) {

  int pageCount = extract.getPageCount();

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

    BufferedImage img = extract.getPageAsImage(page, hasAlpha);

  }

}

extract.closePDFfile();

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

ConvertPagesToHiResImages extract=new ConvertPagesToHiResImages(file);

//extract.setPassword("password");

if (extract.openPDFFile()) {

  int pageCount = extract.getPageCount();

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

    BufferedImage img = extract.getPageAsImage(page, hasAlpha);

  }

}

extract.closePDFfile();

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"});