Disable Shortcut Keys in PDF for Print/Copy

[Rohit Kedia]

Hi ,

I am working on a PDF which is stored in Oracle Database in BLOB column.
When I am retreiveing the Data as a Byte Array from Database I am converting the Byte Array to Byte Array OutPut Stream and Flushing it to show a PDF in a New Window.

Now I want to add restrictions to the PDF that it cannot be Printed/Copied/Save to a Desktop, I was able to hide the Toolbars from the PDF but the Short-Cut Keys are still working.
Please suggest what can I do to stop this, I am working in Java 1.4.

Apology if it is not posted in the Correct Forum.

[Paul Clapham]

A question about working with a PDF document... no, your suspicion is correct, that's nothing to do with servlets. Let's find a better home for it.

[Sarah Wang]

Hi,
I have completely the same question like yours, but I still couldn't find a way to resolve it. Here is the related artice link I searched in this site for your reference - it generates a encrypted pdf in the local drive and it works! But in my case, I have to make the pdf output in a popup browser instead of a real pdf in the local drive. When I applied to my code, what I got was an empty page. You can try that and maybe you can figure it out. And if you do, please share with me. Thanks.

the related artice link
https://coderanch.com/t/63399/open-source/generate-secure-restricted-pdf-IText

the API and Jar you will need as follows.
API of iText (javadoc format):
http://api.itextpdf.com/

Jar:
http://bouncycastle.org/latest_releases.html

sample code

package com.lowagie.examples.general;

import java.io.FileOutputStream;
import java.io.IOException;

import com.lowagie.text.*;
import com.lowagie.text.pdf.PdfWriter;

/**
 * Generates an encrypted 'Hello World' PDF file.
 *
 * @author blowagie
 */

public class HelloEncrypted {

	/**
	 * Generates a PDF file with the text 'Hello World'
	 * that is protected with the password 'Hello'.
	 *
	 * @param args no arguments needed here
	 */
	public static void main(String[] args) {

		System.out.println("Hello World Encrypted");

		// step 1: creation of a document-object
		Document document = new Document();
		try {
			// step 2:
			// we create a writer that listens to the document
			// and directs a PDF-stream to a file
			PdfWriter writer = PdfWriter.getInstance(document,
					new FileOutputStream("HelloEncrypted.pdf"));
			writer.setEncryption(null, null, ~(PdfWriter.ALLOW_COPY | PdfWriter.ALLOW_PRINTING | PdfWriter.ALLOW_SCREENREADERS), PdfWriter.ENCRYPTION_AES_128);
			// step 3: we open the document
			document.open();
			// step 4: we add a paragraph to the document
			document.add(new Paragraph("Hello World"));
		} catch (DocumentException de) {
			System.err.println(de.getMessage());
		} catch (IOException ioe) {
			System.err.println(ioe.getMessage());
		}

		// step 5: we close the document
		document.close();
	}
}