答案 0 :(得分:6)
首先,您需要创建一个表单,作为所有许可证文档的模板。 Chapter 6 of "iText in Action"的第5.3.5节(可以免费下载的章节)解释了如何使用OpenOffice创建这样的表单,但是有很多替代方法可以做到这一点。我使用Adobe Acrobat创建了这样一个表单:CertificateOfExcellence.pdf
我突出显示了这些字段,以便您可以看到我添加它们的位置。有四个:
现在我可以轻松填写表格(参见FillForm):
public void manipulatePdf(String src, String dest) throws DocumentException, IOException {
PdfReader reader = new PdfReader(src);
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(dest));
AcroFields form = stamper.getAcroFields();
form.setField("course", "Copying and Pasting from StackOverflow");
form.setField("name", "Some dude on StackOverflow");
form.setField("date", "April 10, 2016");
form.setField("description",
"In this course, people consistently ignore the existing documentation completely. "
+ "They are encouraged to do no effort whatsoever, but instead post their questions "
+ "on StackOverflow. It would be a mistake to refer to people completing this course "
+ "as developers. A better designation for them would be copy/paste artist. "
+ "Only in very rare cases do these people know what they are actually doing. "
+ "Not a single student has ever learned anything substantial during this course.");
stamper.setFormFlattening(true);
stamper.close();
}
生成的PDF如下所示:certificate.pdf
如您所见,代码非常简单。对于那些花时间阅读文档的人来说,所有这些都有很好的文档记录。也许您还可以查看Interactive forms上标题为official web site的部分。