PdfCopy中的iText mergeFields创建无效pdf

Question

public class TestForms {

 @Test
 public void testNoForms() throws DocumentException, IOException {
     test("pdf/hello.pdf", "pdf/hello_memory.pdf");
 }

 @Test
 public void testForms() throws DocumentException, IOException {
     test("pdf/subscribe.pdf", "pdf/filled_form_1.pdf");
 }

 private void test(String first, String second) throws DocumentException, IOException {
    OutputStream out = new FileOutputStream("/tmp/out.pdf");
    InputStream stream = getClass().getClassLoader().getResourceAsStream(first);
    PdfReader reader = new PdfReader(new RandomAccessFileOrArray(
            new RandomAccessSourceFactory().createSource(stream)), null);
    InputStream stream2 = getClass().getClassLoader().getResourceAsStream(second);
    PdfReader reader2 = new PdfReader(new RandomAccessFileOrArray(
            new RandomAccessSourceFactory().createSource(stream2)), null);

    Document pdfDocument = new Document(reader.getPageSizeWithRotation(1));
    PdfCopy pdfCopy = new PdfCopy(pdfDocument, out);
    pdfCopy.setFullCompression();
    pdfCopy.setCompressionLevel(PdfStream.BEST_COMPRESSION);
    pdfCopy.setMergeFields();
    pdfDocument.open();
    pdfCopy.addDocument(reader);
    pdfCopy.addDocument(reader2);
    pdfCopy.close();
    reader.close();
    reader2.close();
 }
}

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Answer 1

您对pdfcopy.setMergeFields()的使用是正确的，您的合并代码也是正确的。

您所描述的问题是由于已经蔓延到5.4.5中的bug造成的。它们应该在Rev.6152中被修复，并且这些修复将包含在下一个版本中。

谢谢你让我们注意到这一点。