Disable PDF access permissions like Save/Save As/Print

[tushar borole]

Hi,
I want to disable save/save as/print permissions for the pdf file which I am displaying in IE/any browser. I want to change these options dynamically at runtime.Can anyon suggest me how to acheive this functionality in java. (Is java Applet would be a good options for it. If yes how to do this). Thanks in advance.

Tushar Borole

[Ulf Dittmer]

Welcome to JavaRanch.

Yes, this can be done with Java, but an applet is not the right place to do it, and it needs to be done before the PDF is served to the client.

The excellent iText library can apply security to an existing PDF. My post in this thread shows a relevant code excerpt that uses iText.

I'll move this post to the Other Open Source project forum where iText is discussed.

[tushar borole]

Thank you. Could you please let me know where I can get the required jar to download?

[Ulf Dittmer]

What did you get when you googled "download itext"?

[Sarah Wang]

Hi,
I know how to disable permissions for the pdf existed in the local hard drive, but I use the same method to output the pdf in IE, and there is only a blank page with no exception. If any one know what's the problem? If there is any comments, I appreciate it. Thanks a lot!

  private void hideMenu(InputStream is, OutputStream os)
    throws IOException
  {
    Rectangle rec = null;
    int page = 0;
    Document document = new Document();
    try {
      com.lowagie.text.pdf.PdfReader reader = new com.lowagie.text.pdf.PdfReader(is);
      PdfWriter writer = PdfWriter.getInstance(document, os);

      // program stopped here, but no exception was thrown out
      [color=red]writer.setEncryption(null, null, ~PdfWriter.ALLOW_PRINTING, PdfWriter.ENCRYPTION_AES_128);[/color]

      document.open();
      PdfContentByte cb = writer.getDirectContent();
      page = reader.getNumberOfPages();
      int i = 0;
      while (i < page) {
        rec = reader.getPageSize(i+1);
        document.setPageSize(new Rectangle(rec.getWidth(), rec.getHeight()));
        document.newPage();
        i++;
        PdfImportedPage pageToNew = writer.getImportedPage(reader, i);
        cb.addTemplate(pageToNew,0,0);
      }

    } catch (Exception de) {
            System.err.println(de.getMessage());
    }
      document.close();
  }