Java PDF Viewer

Question

I am using java and RCP and I am trying to show pdf Document with Acrobat on my views. I don't need to change them. I have this error with this code. Any idea how to resolve this problem?. P.s.: it works good same times.

PDFFile pdfFile;
pdfFile = PdfFileLoader.loadPdf(file, new NullProgressMonitor());
PdfDocument pdfDocument = new OneDimensionalPdfDocument(pdfFile, new NullProgressMonitor());
pdfViewer.setPdfDocument(pdfDocument);

Error from PdfDocument pdfDocument = new OneDimensionalPdfDocument(pdfFile, new NullProgressMonitor()) : Unsupport CMap format: 6
java.nio.BufferUnderflowException
at java.nio.Buffer.nextGetIndex(Unknown Source)
at java.nio.HeapByteBuffer.getShort(Unknown Source)
at com.sun.pdfview.font.ttf.HmtxTable.setData(HmtxTable.java:79)
at com.sun.pdfview.font.ttf.TrueTypeTable.createTable(TrueTypeTable.java:113)
at com.sun.pdfview.font.ttf.TrueTypeFont.getTable(TrueTypeFont.java:106)
at com.sun.pdfview.font.TTFFont.getOutline(TTFFont.java:129)
at com.sun.pdfview.font.TTFFont.getOutline(TTFFont.java:89)
at com.sun.pdfview.font.OutlineFont.getGlyph(OutlineFont.java:118)
at com.sun.pdfview.font.PDFFont.getCachedGlyph(PDFFont.java:307)
at com.sun.pdfview.font.PDFFontEncoding.getGlyphFromEncoding(PDFFontEncoding.java:132)
at com.sun.pdfview.font.PDFFontEncoding.getGlyphs(PDFFontEncoding.java:98)
at com.sun.pdfview.font.PDFFont.getGlyphs(PDFFont.java:273)
at com.sun.pdfview.PDFTextFormat.doText(PDFTextFormat.java:283)
at com.sun.pdfview.PDFParser.iterate(PDFParser.java:742)
at com.sun.pdfview.BaseWatchable.run(BaseWatchable.java:88)
at java.lang.Thread.run(Unknown Source)

Regards, Haythem

Murrelet

Which library are you using?? – Mambo

Answer 1

Have a look at these free pdf renderer ...

Some links ...

1. http://www.icepdf.org/ (now at http://www.icesoft.org/java/projects/ICEpdf/overview.jsf - Apache 2 Open Source)

2. http://www.jpedal.org/support_siEclipse.php (now at https://www.idrsolutions.com/jpedal/ - commercial)

3. https://java.net/projects/pdf-renderer (still available https://github.com/yarick123/pdf-renderer - LGPL-2.1)

UPDATE

As per http://www.icepdf.org/ ,

ICEpdf is an open source Java PDF engine that can render, convert, or extract PDF content within any Java application or on a Web server.

For basic functionality you have to include icepdf-core.jar and icepdf-viewer.jar in your class path. Depending upon the requirement you can also add the SVG support.

Taken from iceface sample folder:

import org.icepdf.ri.common.SwingController;
import org.icepdf.ri.common.SwingViewBuilder;

import javax.swing.*;

/**
 * The <code>ViewerComponentExample</code> class is an example of how to use
 * <code>SwingController</code> and <code>SwingViewBuilder</code>
 * to build a PDF viewer component.  A file specified at the command line is
 * opened in a JFrame which contains the viewer component.
 *
 * @since 2.0
 */
public class ViewerComponentExample {
    public static void main(String[] args) {
        // Get a file from the command line to open
        String filePath = args[0];

        // build a component controller
        SwingController controller = new SwingController();

        SwingViewBuilder factory = new SwingViewBuilder(controller);

        JPanel viewerComponentPanel = factory.buildViewerPanel();

        // add interactive mouse link annotation support via callback
        controller.getDocumentViewController().setAnnotationCallback(
                new org.icepdf.ri.common.MyAnnotationCallback(
                        controller.getDocumentViewController()));

        JFrame applicationFrame = new JFrame();
        applicationFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        applicationFrame.getContentPane().add(viewerComponentPanel);

        // Now that the GUI is all in place, we can try openning a PDF
        controller.openDocument(filePath);

        // show the component
        applicationFrame.pack();
        applicationFrame.setVisible(true);
    }
}

The above code helps you in displaying a PDF on a swing component. You can do the same in the SWT environment (have a look at SwingViewBuilder .. kind of hard, but will SWT look and feel ) or use org.eclipse.swt.awt.SWT_AWT (kind of easy... but will have swing + swt look and feel)... though both approach will solve your purpose. Also check the applicable licenses in the license folder.

Hope this will help.

Mambo

Yes I saw them but I cann't found a way to open existing PDF files and to show them on a view. – Murrelet

@Favonius: I am using org.nightlabs.eclipse.ui.pdfviewer – Murrelet

@Haythem: As per nightlab page, they are internally using pdf-renderer.dev.java.net for rendering. Is there any image in the PDF file which is giving problem? The sun pdf-renderer is known to have problem with embedded tiff files. Have a look at this javalobby post javalobby.org/java/forums/t104502.html – Mambo

@Haythem: Also from the pdf-renderer.dev.java.net this was the only known release. I will suggest having a look at jpedal.org/support_siEclipse.php the reader source is also available on their page. – Mambo

@Favoonius: I should use an opensource project like iText. Do you have an example how to show an existing pdf document on a view with iText or an opensource? – Murrelet

@Haythem: iText is a library to create, read or manipulate documents in the PDF format. You cannot use it for displaying/rendering pdf files. Although you can use icepdf. Check my updated answer. – Mambo

For any future comers - you can get the JARs directly off their old Google code project here. – Improvised

the point is, their font renderer engine is based on a license – Phototopography

Current state: The icepdf.org site is no longer available. See pdf4f (on github) (based on 6.1.1, last updated 2016) or pcorless icepdf (lots of updates, recent 7.2.x version, minimum Java 11). Jpedal is very expensive. Yarick123 last update is 2014. – Barrage

Answer 2

Here is another free, small and powerful PDF Viewer based on Eclipse SWT and jPod Renderer — JPview. It has strong rendering and low memory usage.

Potpourri