added new module to unlock pdf, used pdf-decrypt-lite

package.json

@@ -12,6 +12,7 @@
     "test:watch": "vitest"
   },
   "dependencies": {
+    "@pdfsmaller/pdf-decrypt-lite": "^1.0.0",
     "@pdfsmaller/pdf-encrypt-lite": "^1.0.2",
     "@rainbow-me/rainbowkit": "^2.2.10",
     "@tanstack/react-query": "^5.95.2",
@@ -26,7 +27,8 @@
     "react-dom": "^19.2.4",
     "react-router-dom": "^7.13.1",
     "viem": "^2.47.6",
-    "wagmi": "^2.19.5"
+    "wagmi": "^2.19.5",
+    "zod": "^3.25.76"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.4",

src/App.jsx

@@ -21,6 +21,7 @@ import { PageNumbers } from "./pages/PageNumbers/PageNumbers";
 import { LockPdf }     from "./pages/LockPdf/LockPdf";
 import { EditPdf }     from "./pages/EditPdf/EditPdf";
 import { Admin }       from "./pages/Admin/Admin";
+import UnlockPdf from "./pages/Unlockpdf/Unlockpdf";
 
 function App() {
   return (
@@ -44,6 +45,7 @@ function App() {
             <Route path="/lock-pdf"     element={<LockPdf />} />
             <Route path="/edit-pdf"     element={<EditPdf />} />
             <Route path="/admin"        element={<Admin />} />
+            <Route path="/unlock-pdf" element={<UnlockPdf />} />
           </Routes>
         </PageContainer>
       </div>

src/pages/Home/components/ToolsGrid.jsx

@@ -15,6 +15,7 @@ import {
   Hash,
   Lock,
   FileEdit,
+  Unlock // Added the Unlock icon here
 } from "lucide-react";
 
 export function ToolsGrid() {
@@ -242,7 +243,7 @@ export function ToolsGrid() {
         >
           <div className="absolute inset-0 bg-gradient-to-br from-white/[0.02] to-transparent opacity-0 group-hover:opacity-100 transition-opacity duration-500" />
           <div className="relative z-10 w-14 h-14 border border-white/10 bg-zinc-900 text-white rounded-2xl flex items-center justify-center mb-8 group-hover:scale-110 group-hover:bg-white group-hover:text-black transition-all duration-500">
-            <Images className="w-6 h-6" />,
+            <Images className="w-6 h-6" />
           </div>
           <h2 className="relative z-10 text-2xl font-semibold text-white mb-3 tracking-tight">
             PDF to Images
@@ -367,6 +368,34 @@ export function ToolsGrid() {
           </div>
         </Link>
       </Motion.div>
+
+      {/* 13. Unlock PDF Card */}
+      <Motion.div
+        variants={cardVariants}
+        initial="hidden"
+        whileInView="visible"
+        viewport={{ once: true, margin: "-50px" }}
+        transition={{ delay: 0.5 }}
+      >
+        <Link
+          to="/unlock-pdf"
+          className="group flex flex-col p-8 bg-[#0a0a0a] border border-white/10 rounded-3xl hover:border-white/30 hover:bg-white/[0.02] hover:shadow-[0_0_40px_rgba(255,255,255,0.03)] transition-all duration-500 text-left h-full relative overflow-hidden"
+        >
+          <div className="absolute inset-0 bg-gradient-to-br from-white/[0.02] to-transparent opacity-0 group-hover:opacity-100 transition-opacity duration-500" />
+          <div className="relative z-10 w-14 h-14 border border-white/10 bg-zinc-900 text-white rounded-2xl flex items-center justify-center mb-8 group-hover:scale-110 group-hover:bg-white group-hover:text-black transition-all duration-500">
+            <Unlock className="w-6 h-6" />
+          </div>
+          <h2 className="relative z-10 text-2xl font-semibold text-white mb-3 tracking-tight">
+            Unlock PDF
+          </h2>
+          <p className="relative z-10 text-zinc-400 mb-8 font-light flex-grow leading-relaxed">
+            Remove password security from your PDF documents for easier sharing and printing.
+          </p>
+          <div className="relative z-10 flex items-center text-sm font-medium text-white group-hover:translate-x-2 transition-transform duration-300">
+            Open Unlock PDF <span className="ml-2">→</span>
+          </div>
+        </Link>
+      </Motion.div>
     </div>
   );
-}
+}

src/pages/Unlockpdf/Unlockpdf.jsx

@@ -0,0 +1,238 @@
+import React, { useState } from "react";
+import { useFileStore } from "../../hooks/useFileStore";
+import {
+  Unlock, Eye, EyeOff, X, Loader2,
+  CheckCircle2, ShieldCheck, AlertTriangle, FileText
+} from "lucide-react";
+import { AnimatePresence, motion as Motion } from "framer-motion";
+import { Button }        from "../../components/ui/Button";
+import { UpgradeButton } from "../../components/ui/UpgradeButton";
+import { Dropzone }      from "../../components/pdf/Dropzone";
+import { formatFileSize } from "../../utils/formatters";
+import { unlockPdf, getPdfPageCount } from "../../services/pdf.service";
+import { useSubscription } from "../../hooks/useSubscription";
+import { FREE_LIMITS, mbToBytes } from "../../config/limits";
+
+export function UnlockPdf() {
+  // Using useFileStore to persist the file state across navigation
+  const [file, setFile] = useFileStore("UnlockPdf_file", null);
+  const [password, setPassword]     = useState("");
+  const [showPw, setShowPw]         = useState(false);
+  const [isProcessing, setIsProcessing] = useState(false);
+  const [done, setDone]             = useState(false);
+  const [error, setError]           = useState(null);
+  const [pageCount, setPageCount]   = useState(0);
+
+  const { isPremium, isWalletConnected: isConnected, hasReachedGlobalLimit, incrementUsage } = useSubscription();
+
+  // Assuming FREE_LIMITS has lockPdf/unlockPdf configurations (using lockPdf limits as a baseline)
+  const LIMIT_MB      = FREE_LIMITS.lockPdf?.maxFileSizeMb || 50; 
+  const isOverSize    = !isPremium && !!file && file.size > mbToBytes(LIMIT_MB);
+  const isLocked      = !isPremium && (isOverSize || hasReachedGlobalLimit);
+  const paywallReason = hasReachedGlobalLimit ? "global" : "size";
+
+  const canSubmit   = !!file && password.length > 0 && !isProcessing;
+
+  async function handleUnlock() {
+    if (!canSubmit) return;
+
+    setIsProcessing(true);
+    setError(null);
+    setDone(false);
+
+    try {
+      const blob = await unlockPdf(file, password);
+      const url  = URL.createObjectURL(blob);
+      const a    = document.createElement("a");
+      a.href     = url;
+      a.download = `unlocked_${file.name}`;
+      a.click();
+      URL.revokeObjectURL(url);
+
+      await incrementUsage();
+      setDone(true);
+    } catch (err) {
+      setError("Failed to unlock the PDF. Please check that the password is correct.");
+      console.error(err);
+    } finally {
+      setIsProcessing(false);
+    }
+  }
+
+  function reset() {
+    setFile(null);
+    setPassword("");
+    setDone(false);
+    setError(null);
+  }
+
+  return (
+    <div className="max-w-3xl mx-auto py-16 px-4">
+
+      {/* ── Header ── */}
+      <div className="text-center mb-12">
+        <Motion.div
+          initial={{ scale: 0.8, opacity: 0 }}
+          animate={{ scale: 1, opacity: 1 }}
+          transition={{ duration: 0.6, type: "spring" }}
+          className="inline-flex items-center justify-center w-20 h-20 rounded-3xl bg-white text-black mb-6 shadow-[0_0_50px_rgba(255,255,255,0.15)]"
+        >
+          <Unlock className="w-10 h-10" />
+        </Motion.div>
+
+        <h1 className="text-5xl font-black text-white mb-4 tracking-tighter uppercase">
+          Unlock PDF
+        </h1>
+        <p className="text-zinc-500 text-lg font-light max-w-md mx-auto">
+          Remove password security from your document entirely in the browser — nothing is uploaded to any server.
+        </p>
+
+        {/* global-limit banner */}
+        <AnimatePresence>
+          {hasReachedGlobalLimit && !isPremium && (
+            <Motion.div
+              initial={{ opacity: 0, y: -8 }} animate={{ opacity: 1, y: 0 }} exit={{ opacity: 0, y: -8 }}
+              className="mt-6 inline-flex items-center gap-2.5 px-4 py-2.5 rounded-xl bg-zinc-900 border border-white/10 text-zinc-300 text-sm"
+            >
+              <AlertTriangle className="w-4 h-4 text-amber-400 shrink-0" />
+              <span><span className="font-semibold text-white">Free limit reached.</span> Connect your wallet to keep going.</span>
+            </Motion.div>
+          )}
+        </AnimatePresence>
+      </div>
+
+      {/* ── Drop zone ── */}
+      {!file ? (
+        <Dropzone
+          onFilesSelected={async (f) => {
+            const selectedFile = f[0];
+            if (!selectedFile) return;
+
+            setFile(selectedFile);
+
+            const count = await getPdfPageCount(selectedFile);
+            setPageCount(count);
+
+            setDone(false);
+          }}
+          multiple={false}
+          text="Drop a locked PDF to unlock it"
+        />
+      ) : (
+        <Motion.div initial={{ opacity: 0, y: 20 }} animate={{ opacity: 1, y: 0 }}>
+
+          {/* size warning */}
+          <AnimatePresence>
+            {isOverSize && !isPremium && (
+              <Motion.div
+                initial={{ opacity: 0, height: 0 }} animate={{ opacity: 1, height: "auto" }} exit={{ opacity: 0, height: 0 }}
+                className="mb-6 overflow-hidden"
+              >
+                <div className="flex items-start gap-3 px-4 py-3.5 bg-zinc-900 border border-white/10 rounded-2xl text-sm">
+                  <AlertTriangle className="w-4 h-4 text-amber-400 mt-0.5 shrink-0" />
+                  <div>
+                    <span className="font-semibold text-white">File exceeds {LIMIT_MB} MB free limit.</span>{" "}
+                    <span className="text-zinc-400">{formatFileSize(file.size)} uploaded. Upgrade for unlimited sizes.</span>
+                  </div>
+                </div>
+              </Motion.div>
+            )}
+          </AnimatePresence>
+
+          {/* error */}
+          {error && (
+            <div className="mb-6 px-4 py-3 bg-red-500/10 border border-red-500/20 rounded-2xl text-red-400 text-sm">
+              {error}
+            </div>
+          )}
+
+          <div className="bg-[#0a0a0a] border border-white/10 rounded-[2.5rem] p-8 shadow-2xl space-y-8">
+
+            {/* File info row */}
+            <div className="flex items-center gap-4 p-4 bg-zinc-900/50 border border-white/[0.06] rounded-2xl">
+              <div className="w-10 h-10 rounded-xl bg-white/5 border border-white/10 flex items-center justify-center shrink-0">
+                <FileText className="w-5 h-5 text-zinc-400" />
+              </div>
+              <div className="min-w-0">
+                <p className="text-sm font-semibold text-white truncate">{file.name}</p>
+                <p className="text-xs text-zinc-500">{formatFileSize(file.size)} • {pageCount} pages</p>
+              </div>
+              <button
+                onClick={reset}
+                className="ml-auto p-2 text-zinc-600 hover:text-white hover:bg-white/5 rounded-xl transition-colors"
+              >
+                <X className="w-4 h-4" />
+              </button>
+            </div>
+
+            {/* Password field */}
+            <div className="space-y-2">
+              <label className="block text-xs text-zinc-500 uppercase tracking-widest font-semibold">
+                Current PDF Password
+              </label>
+              <div className="relative">
+                <input
+                  type={showPw ? "text" : "password"}
+                  value={password}
+                  onChange={(e) => { setPassword(e.target.value); setDone(false); setError(null); }}
+                  placeholder="Enter the password to unlock..."
+                  className="w-full h-12 px-4 pr-12 bg-zinc-900/60 border border-white/10 rounded-xl text-sm text-white placeholder-zinc-600 focus:outline-none focus:border-white/30 transition-colors"
+                  autoComplete="new-password"
+                />
+                <button
+                  type="button"
+                  onClick={() => setShowPw((v) => !v)}
+                  className="absolute right-3 top-1/2 -translate-y-1/2 p-1 text-zinc-500 hover:text-white transition-colors"
+                >
+                  {showPw ? <EyeOff className="w-4 h-4" /> : <Eye className="w-4 h-4" />}
+                </button>
+              </div>
+            </div>
+
+            {/* Security note */}
+            <div className="flex items-start gap-3 px-4 py-3 bg-white/[0.02] border border-white/[0.06] rounded-2xl">
+              <ShieldCheck className="w-4 h-4 text-zinc-500 mt-0.5 shrink-0" />
+              <p className="text-xs text-zinc-500 leading-relaxed">
+                Decryption is performed <span className="text-zinc-300 font-medium">entirely in your browser</span>. No file or password is ever sent to a server. A new, unlocked copy will be downloaded to your device.
+              </p>
+            </div>
+
+            {/* CTA */}
+            <div className="space-y-3 pt-2">
+              {isLocked ? (
+                <UpgradeButton
+                  reason={paywallReason}
+                  limitLabel={`${LIMIT_MB} MB`}
+                  isWalletConnected={isConnected}
+                  isPremium={isPremium}
+                  className="w-full h-16 text-lg"
+                />
+              ) : (
+                <Button
+                  onClick={handleUnlock}
+                  disabled={!canSubmit}
+                  className="w-full h-16 text-lg font-bold rounded-2xl bg-white text-black hover:bg-zinc-200 transition-all active:scale-[0.98] shadow-xl disabled:opacity-40"
+                >
+                  {isProcessing
+                    ? <><Loader2 className="animate-spin mr-3 w-5 h-5" />Unlocking…</>
+                    : done
+                    ? <><CheckCircle2 className="mr-3 w-5 h-5 text-emerald-500" />Downloaded!</>
+                    : <><Unlock className="mr-3 w-5 h-5" />Unlock &amp; Download</>
+                  }
+                </Button>
+              )}
+              <button
+                onClick={reset}
+                className="w-full text-center text-zinc-500 hover:text-white transition-colors text-sm font-medium underline underline-offset-4"
+              >
+                Upload a different file
+              </button>
+            </div>
+          </div>
+        </Motion.div>
+      )}
+    </div>
+  );
+}
+
+export default UnlockPdf;