diff --git a/package.json b/package.json
index c59f3a34..8b817b07 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,6 @@
     "@bam.tech/react-native-image-resizer": "3.0.5",
     "@notifee/react-native": "7.8.2",
     "@nozbe/with-observables": "1.4.1",
-    "@react-native/metro-config": "0.72.11",
     "@react-native-async-storage/async-storage": "1.17.11",
     "@react-native-clipboard/clipboard": "^1.11.2",
     "@react-native-community/netinfo": "9.3.7",
@@ -53,6 +52,7 @@
     "@react-native-firebase/perf": "16.7.0",
     "@react-native-firebase/remote-config": "16.7.0",
     "@react-native-google-signin/google-signin": "13.1.0",
+    "@react-native/metro-config": "0.72.11",
     "@react-navigation/bottom-tabs": "6.6.1",
     "@react-navigation/native": "6.1.18",
     "@react-navigation/native-stack": "6.11.0",
@@ -91,6 +91,7 @@
     "react-native-pdf-renderer": "1.1.1",
     "react-native-permissions": "3.6.1",
     "react-native-qrcode-svg": "^6.2.0",
+    "react-native-quick-base64": "2.1.2",
     "react-native-safe-area-context": "4.4.1",
     "react-native-screens": "3.18.2",
     "react-native-svg": "^13.9.0",
diff --git a/src/screens/caseDetails/PDFUtil.ts b/src/screens/caseDetails/PDFUtil.ts
new file mode 100644
index 00000000..6a8eee2e
--- /dev/null
+++ b/src/screens/caseDetails/PDFUtil.ts
@@ -0,0 +1,40 @@
+const FILE_SIGNATURES = {
+  pdf: ['25504446'], // "%PDF" in hex
+  jpeg: ['ffd8ffe0', 'ffd8ffe1', 'ffd8ffe2', 'ffd8ffe3', 'ffd8ffe8'], // JPEG signatures
+  png: ['89504e47'], // PNG signature
+  gif: ['47494638'], // GIF signature
+};
+
+const convertBase64ToUint8Array = (binaryString: string) => {
+  const length = binaryString.length;
+  const bytes = new Uint8Array(length);
+  for (let i = 0; i < length; i++) {
+    bytes[i] = binaryString.charCodeAt(i);
+  }
+  return bytes;
+};
+
+const bytesToHex = (bytes: Uint8Array) => {
+  return Array.from(bytes)
+    .map((byte) => byte.toString(16).padStart(2, '0'))
+    .join('');
+};
+
+export const getFileType = async (fileContent: string) => {
+  if (__DEV__) return 'pdf';
+  const { atob } = await import('react-native-quick-base64');
+  try {
+    const fileBytes = convertBase64ToUint8Array(atob(fileContent));
+    const fileHex = bytesToHex(fileBytes);
+
+    for (const [type, signatures] of Object.entries(FILE_SIGNATURES)) {
+      if (signatures.some((signature) => fileHex.startsWith(signature))) {
+        return type;
+      }
+    }
+
+    return null;
+  } catch (error) {
+    return null;
+  }
+};
diff --git a/yarn.lock b/yarn.lock
index bb1e470c..59908995 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8969,6 +8969,13 @@ react-native-qrcode-svg@^6.2.0:
     prop-types "^15.8.0"
     qrcode "^1.5.1"
 
+react-native-quick-base64@2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/react-native-quick-base64/-/react-native-quick-base64-2.1.2.tgz#062b09b165c1530095fe99b94544c948318dbe99"
+  integrity sha512-xghaXpWdB0ji8OwYyo0fWezRroNxiNFCNFpGUIyE7+qc4gA/IGWnysIG5L0MbdoORv8FkTKUvfd6yCUN5R2VFA==
+  dependencies:
+    base64-js "^1.5.1"
+
 react-native-reanimated@3.6.3:
   version "3.6.3"
   resolved "https://registry.yarnpkg.com/react-native-reanimated/-/react-native-reanimated-3.6.3.tgz#859cf2320e37c80e3a21e19db24f82c34d6d3ded"