PDF标题未找到例外

时间:2017-10-16 14:32:18

标签: java pdf exception itext7

我正在使用itext 7和java,当我尝试打开现有的pdf文件时,我的问题是异常。这是我的代码

    JFileChooser load = new JFileChooser();
    load.setFileFilter(new PdfFilter());
    load.showOpenDialog(this);
    String loadPath = load.getSelectedFile().getAbsolutePath();
//some stuff here....


    path = path.concat(".pdf");//path is declared above


    try {
        pdf = new PdfDocument(new PdfReader(loadPath), new PdfWriter(path));
    } catch (IOException ex) {
        Logger.getLogger(ParagrafoFrame.class.getName()).log(Level.SEVERE, null, ex);
    }

    doc = new Document(pdf);
    doc.add(new Paragraph("test"));
    doc.close();

为什么它不起作用?

此处是堆栈跟踪

  

线程中的异常" AWT-EventQueue-0" com.itextpdf.io.IOException:找不到PDF标题。       在com.itextpdf.io.source.PdfTokenizer.getHeaderOffset(PdfTokenizer.java:223)       at com.itextpdf.kernel.pdf.PdfReader.getOffsetTokeniser(PdfReader.java:1075)       在com.itextpdf.kernel.pdf.PdfReader。(PdfReader.java:120)       在com.itextpdf.kernel.pdf.PdfReader。(PdfReader.java:154)       在com.itextpdf.kernel.pdf.PdfReader。(PdfReader.java:170)       在com.antonionappi.editorpdf.ParagrafoFrame.continuaButtonActionPerformed(ParagrafoFrame.java:1339)       在com.antonionappi.editorpdf.ParagrafoFrame.access $ 2400(ParagrafoFrame.java:46)       在com.antonionappi.editorpdf.ParagrafoFrame $ 25.actionPerformed(ParagrafoFrame.java:404)       在javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)       在javax.swing.AbstractButton $ Handler.actionPerformed(AbstractButton.java:2348)       在javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)       在javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)       在javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)       at java.awt.Component.processMouseEvent(Component.java:6533)       在javax.swing.JComponent.processMouseEvent(JComponent.java:3324)       at java.awt.Component.processEvent(Component.java:6298)       at java.awt.Container.processEvent(Container.java:2236)       at java.awt.Component.dispatchEventImpl(Component.java:4889)       at java.awt.Container.dispatchEventImpl(Container.java:2294)       at java.awt.Component.dispatchEvent(Component.java:4711)       at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)       at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)       at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)       at java.awt.Container.dispatchEventImpl(Container.java:2280)       at java.awt.Window.dispatchEventImpl(Window.java:2746)       at java.awt.Component.dispatchEvent(Component.java:4711)       at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)       at java.awt.EventQueue.access $ 500(EventQueue.java:97)       at java.awt.EventQueue $ 3.run(EventQueue.java:709)       at java.awt.EventQueue $ 3.run(EventQueue.java:703)       at java.security.AccessController.doPrivileged(Native Method)       at java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)       at java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)       at java.awt.EventQueue $ 4.run(EventQueue.java:731)       at java.awt.EventQueue $ 4.run(EventQueue.java:729)       at java.security.AccessController.doPrivileged(Native Method)       at java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)       at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)       at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)       at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)       at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)       at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)       at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)       在java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

1 个答案:

答案 0 :(得分:0)

我的情况下,我忘记了关闭文档:

PdfDocument pdfDoc = new PdfDocument(new PdfWriter(DEST));
Document doc = new Document(pdfDoc);
//...
doc.close(); //HAVE YOU CLOSE?
pdfDoc.close(); //HAVE YOU CLOSE?