Java PDF Viewer

Question

我正在使用java和RCP,我试图在我的视图上显示带有Acrobat的pdf文档.我不需要改变它们.我有这个代码的错误.知道如何解决这个问题吗？Ps:它同时运作良好.

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)

此致,Haythem

Answer 1

看看这些免费的pdf渲染器......

一些链接......

1. http://www.icepdf.org/(现在http://www.icesoft.org/java/projects/ICEpdf/overview.jsf - Apache 2开源)

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

3. https://java.net/projects/pdf-renderer(仍然可用https://github.com/yarick123/pdf-renderer - LGPL-2.1)

UPDATE

根据http://www.icepdf.org/,

ICEpdf是一个开源Java PDF引擎,可以在任何Java应用程序或Web服务器上呈现,转换或提取PDF内容.

对于基本功能,你必须包括icepdf-core.jar与icepdf-viewer.jar您的类路径.根据要求,您还可以添加SVG支持.

取自iceface样本文件夹:

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);
    }
}

上面的代码可以帮助您在swing组件上显示PDF.你可以在SWT环境中做同样的事情(看看SwingViewBuilder......有点难,但是SWT的外观和感觉)或者使用org.eclipse.swt.awt.SWT_AWT(有点容易......但是会有swing + swt的外观和感觉)......虽然这两种方法都会解决你的目的.另请检查许可证文件夹中的适用许可证.

希望这会有所帮助.