diff options
Diffstat (limited to 'src/main/java/com/lowagie/tools/encrypt_pdf.java')
| -rw-r--r-- | src/main/java/com/lowagie/tools/encrypt_pdf.java | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/tools/encrypt_pdf.java b/src/main/java/com/lowagie/tools/encrypt_pdf.java new file mode 100644 index 0000000..e6a0215 --- /dev/null +++ b/src/main/java/com/lowagie/tools/encrypt_pdf.java @@ -0,0 +1,99 @@ +/*
+ * $Id: encrypt_pdf.java,v 1.18 2004/12/14 10:59:06 blowagie Exp $
+ * $Name: $
+ *
+ * This code is free software. It may only be copied or modified
+ * if you include the following copyright notice:
+ *
+ * This class by Paulo Soares. Copyright (c) 2002 Paulo Soares.
+ *
+ * This code is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * itext@lowagie.com
+ */
+
+/**
+ * This class demonstrates how to encrypt a pdf file
+ * @author Paulo Soares
+ */
+package com.lowagie.tools;
+
+import com.lowagie.text.pdf.PdfEncryptor;
+import com.lowagie.text.pdf.PdfReader;
+import com.lowagie.text.pdf.PdfWriter;
+
+import java.io.FileOutputStream;
+import java.util.HashMap;
+
+/**
+ * Encrypts a PDF document. It needs iText (http://www.lowagie.com/iText).
+ * @author Paulo Soares (psoares@consiste.pt)
+ */
+public class encrypt_pdf {
+
+ private final static int INPUT_FILE = 0;
+ private final static int OUTPUT_FILE = 1;
+ private final static int USER_PASSWORD = 2;
+ private final static int OWNER_PASSWORD = 3;
+ private final static int PERMISSIONS = 4;
+ private final static int STRENGTH = 5;
+ private final static int MOREINFO = 6;
+ private final static int permit[] = {
+ PdfWriter.AllowPrinting,
+ PdfWriter.AllowModifyContents,
+ PdfWriter.AllowCopy,
+ PdfWriter.AllowModifyAnnotations,
+ PdfWriter.AllowFillIn,
+ PdfWriter.AllowScreenReaders,
+ PdfWriter.AllowAssembly,
+ PdfWriter.AllowDegradedPrinting};
+
+ private static void usage() {
+ System.out.println("usage: input_file output_file user_password owner_password permissions 128|40 [new info string pairs]");
+ System.out.println("permissions is 8 digit long 0 or 1. Each digit has a particular security function:");
+ System.out.println();
+ System.out.println("AllowPrinting");
+ System.out.println("AllowModifyContents");
+ System.out.println("AllowCopy");
+ System.out.println("AllowModifyAnnotations");
+ System.out.println("AllowFillIn (128 bit only)");
+ System.out.println("AllowScreenReaders (128 bit only)");
+ System.out.println("AllowAssembly (128 bit only)");
+ System.out.println("AllowDegradedPrinting (128 bit only)");
+ System.out.println("Example permissions to copy and print would be: 10100000");
+ }
+
+ /**
+ * Encrypts a PDF document.
+ *
+ * @param args input_file output_file user_password owner_password permissions 128|40 [new info string pairs]
+ */
+ public static void main (String args[]) {
+ System.out.println("PDF document encryptor");
+ if (args.length <= STRENGTH || args[PERMISSIONS].length() != 8) {
+ usage();
+ return;
+ }
+ try {
+ int permissions = 0;
+ String p = args[PERMISSIONS];
+ for (int k = 0; k < p.length(); ++k) {
+ permissions |= (p.charAt(k) == '0' ? 0 : permit[k]);
+ }
+ System.out.println("Reading " + args[INPUT_FILE]);
+ PdfReader reader = new PdfReader(args[INPUT_FILE]);
+ System.out.println("Writing " + args[OUTPUT_FILE]);
+ HashMap moreInfo = new HashMap();
+ for (int k = MOREINFO; k < args.length - 1; k += 2)
+ moreInfo.put(args[k], args[k + 1]);
+ PdfEncryptor.encrypt(reader, new FileOutputStream(args[OUTPUT_FILE]),
+ args[USER_PASSWORD].getBytes(), args[OWNER_PASSWORD].getBytes(), permissions, args[STRENGTH].equals("128"), moreInfo);
+ System.out.println("Done.");
+ }
+ catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+}
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