How JPedal allows you to view the commands in a PDF stream

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A new version of JPedal has been released and it contains an exciting new feature—the object stream decoder. If you want to use this for yourself you can download the latest version of JPedal here. You can also view the release notes here.

What are PDF streams?

Objects in a PDF file contain streams however, these are usually stored in binary format and often compressed. JPedal now has the ability to decode these PDF streams into plain text for you to view.

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Using our PDF Inspector tool you can look at the internal structure and contents of any PDF file. If you open up the Cross-Reference Viewer or the Object Viewer you will see there is a new ‘Decode Stream’ button.

If you select a PDF stream object and hit this button a new window will popup with the decoded contents of the PDF stream. This will then allow you to view the commands inside a PDF file.

Here is an example of what this could look like:

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Download JPedal and try for yourself.

Learn more about JPedal’s PDF Inspector.

The JPedal PDF library allows you to solve these problems 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"});

How JPedal allows you to view the commands in a PDF stream

What are PDF streams?

Get started

Learn more

The JPedal PDF library allows you to solve these problems in Java

What is JPedal?

Why use JPedal?

What licenses are available?

How to use JPedal?

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