Implement 'Add Password' and 'Change Permissions' tools in V2 (#4195)

# Description of Changes
Implement Add Password and Change Permissions tools in V2 (both in one
because Change Permissions is a fake endpoint which just calls Add
Password behind the scenes).

---------

Co-authored-by: James <[email protected]>

frontend/public/locales/en-GB/translation.json

@@ -384,6 +384,10 @@
       "title": "Add Password",
       "desc": "Encrypt your PDF document with a password."
     },
+    "changePermissions": {
+      "title": "Change Permissions",
+      "desc": "Change document restrictions and permissions."
+    },
     "removePassword": {
       "title": "Remove Password",
       "desc": "Remove password protection from your PDF document."
@@ -816,30 +820,6 @@
   "removePages": {
     "tags": "Remove pages,delete pages"
   },
-  "addPassword": {
-    "tags": "secure,security",
-    "title": "Add Password",
-    "header": "Add password (Encrypt)",
-    "selectText": {
-      "1": "Select PDF to encrypt",
-      "2": "User Password",
-      "3": "Encryption Key Length",
-      "4": "Higher values are stronger, but lower values have better compatibility.",
-      "5": "Permissions to set (Recommended to be used along with Owner password)",
-      "6": "Prevent assembly of document",
-      "7": "Prevent content extraction",
-      "8": "Prevent extraction for accessibility",
-      "9": "Prevent filling in form",
-      "10": "Prevent modification",
-      "11": "Prevent annotation modification",
-      "12": "Prevent printing",
-      "13": "Prevent printing different formats",
-      "14": "Owner Password",
-      "15": "Restricts what can be done with the document once it is opened (Not supported by all readers)",
-      "16": "Restricts the opening of the document itself"
-    },
-    "submit": "Encrypt"
-  },
   "removePassword": {
     "tags": "secure,Decrypt,security,unpassword,delete password",
     "title": "Remove password",
@@ -1798,5 +1778,109 @@
       "removeFonts": "Remove Fonts",
       "removeFonts.desc": "Remove embedded fonts from the PDF"
     }
+  },
+  "addPassword": {
+    "completed": "Password protection applied",
+    "submit": "Encrypt",
+    "filenamePrefix": "encrypted",
+    "error": {
+      "failed": "An error occurred while encrypting the PDF."
+    },
+    "passwords": {
+      "title": "Passwords",
+      "stepTitle": "Passwords & Encryption",
+      "completed": "Passwords configured",
+      "user": {
+        "label": "User Password",
+        "placeholder": "Enter user password"
+      },
+      "owner": {
+        "label": "Owner Password",
+        "placeholder": "Enter owner password"
+      }
+    },
+    "permissions": {
+      "stepTitle": "Document Permissions"
+    },
+    "encryption": {
+      "title": "Encryption",
+      "keyLength": {
+        "label": "Key Length",
+        "40bit": "40-bit (Low)",
+        "128bit": "128-bit (Standard)",
+        "256bit": "256-bit (High)"
+      }
+    },
+    "results": {
+      "title": "Encrypted PDFs"
+    },
+    "tooltip": {
+      "header": {
+        "title": "Password Protection Overview"
+      },
+      "passwords": {
+        "title": "Password Types",
+        "text": "User passwords restrict opening the document, while owner passwords control what can be done with the document once opened. You can set both or just one.",
+        "bullet1": "User Password: Required to open the PDF",
+        "bullet2": "Owner Password: Controls document permissions (not supported by all PDF viewers)"
+      },
+      "encryption": {
+        "title": "Encryption Levels",
+        "text": "Higher encryption levels provide better security but may not be supported by older PDF viewers.",
+        "bullet1": "40-bit: Basic security, compatible with older viewers",
+        "bullet2": "128-bit: Standard security, widely supported",
+        "bullet3": "256-bit: Maximum security, requires modern viewers"
+      },
+      "restrictions": {
+        "title": "Document Restrictions",
+        "text": "These restrictions control what users can do with the PDF. Most effective when combined with an owner password."
+      }
+    }
+  },
+  "changePermissions": {
+    "completed": "Permissions changed",
+    "submit": "Change Permissions",
+    "error": {
+      "failed": "An error occurred while changing PDF permissions."
+    },
+    "restrictions": {
+      "title": "Document Restrictions",
+      "preventAssembly": {
+        "label": "Prevent assembly of document"
+      },
+      "preventExtractContent": {
+        "label": "Prevent content extraction"
+      },
+      "preventExtractForAccessibility": {
+        "label": "Prevent extraction for accessibility"
+      },
+      "preventFillInForm": {
+        "label": "Prevent filling in form"
+      },
+      "preventModify": {
+        "label": "Prevent modification"
+      },
+      "preventModifyAnnotations": {
+        "label": "Prevent annotation modification"
+      },
+      "preventPrinting": {
+        "label": "Prevent printing"
+      },
+      "preventPrintingFaithful": {
+        "label": "Prevent printing different formats"
+      }
+    },
+    "results": {
+      "title": "Modified PDFs"
+    },
+    "tooltip": {
+      "header": {
+        "title": "Change Permissions"
+      },
+      "description": {
+        "title": "Description",
+        "text": "Changes document permissions. Warning: To make these restrictions unchangeable, use the Add Password tool to set an owner password."
+      }
+    }
   }
 }