代码如下:可以直接创建一个空的pdf带密码的,但是我想让他为只读,也就是不让复制里面的内容!如何做到
String newPdfUrl = "c:\Users\Administrator\Desktop\pdfWater\new.pdf";
Rectangle rect = new Rectangle(PageSize.B5.rotate());
//页面背景色
rect.setBackgroundColor(BaseColor.ORANGE);
Document doc = new Document(rect);
FileOutputStream out = new FileOutputStream(newPdfUrl);
PdfWriter writer = PdfWriter.getInstance(doc, out);
writer.setPdfVersion(PdfWriter.PDF_VERSION_1_2);
// 设置密码为:"World"
writer.setEncryption("Hello".getBytes(), "123456".getBytes(), PdfWriter.ALLOW_SCREENREADERS,PdfWriter.STANDARD_ENCRYPTION_128);