Itext计算签名签名字段的数量

Question

我需要获取pdf文档中已签名字段的数量。现在我这样做：

ServletContext app = getServletContext();
String path = app.getRealPath("/CompesationReportsPdfDocuments/mySignedPdf.pdf");
File thePdf = new File(path);
int numberOfSignedFields=0;
PdfReader reader = new PdfReader(path);
AcroFields fields = reader .getAcroFields();
numberOfSignedFields=fields.getSignatureNames().size();
reader .close();

当我做的时候

System.out.printline("Number of signed fields :"+numberOfSignedFields);

我得到了

Number of signed fields :0

Answer 1

试试这个。希望它能帮到你：

com.lowagie.text.pdf.PdfReader reader = new com.lowagie.text.pdf.PdfReader("MYPDF.pdf");

int position = reader.getAcroFields().getSignatureNames().size();