如何使pdf在itext中只读 [英] How to make pdf read only in itext

问题描述

我的代码遵循

public static void main(String[] args) {
        try 
        {
            PdfReader reader = new PdfReader("D:\\SF_Users.pdf");
            int n = reader.getNumberOfPages();
            Rectangle psize = reader.getPageSize(1);
            Document document = new Document(psize);
            PdfWriter writer = PdfWriter.getInstance(document,
                    new FileOutputStream("D:\\new.pdf"));
            document.open();
            PdfContentByte pdf = writer.getDirectContent();
            document.newPage();
            PdfImportedPage page = writer.getImportedPage(reader, 1);
            pdf.addTemplate(page, .5f, 0, 0, .5f, 60, 120);
            document.close();
        } catch (Exception de) {
        }
    }

在这里，我可以写pdf的同时阅读

Here i can able to read pdf while writting i want make it read only

谢谢

推荐答案

您是否尝试过使用PdfEncryptionSettings API?

Have you tried using the PdfEncryptionSettings API?

文档的打开权限可以是AllowPrinting，AllowModifyContents，AllowCopy，AllowModifyAnnotations，AllowFillIn，AllowScreenReaders，AllowAssembly和AllowDegradedPrinting.

The open permissions for the document can be AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations, AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.

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