diff --git a/app/(application)/coba/index.tsx b/app/(application)/coba/index.tsx
index 65e2c9e..3731644 100644
--- a/app/(application)/coba/index.tsx
+++ b/app/(application)/coba/index.tsx
@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-unused-vars */
 import React from "react";
 import {
   View,
@@ -11,6 +12,8 @@ import { Ionicons } from "@expo/vector-icons";
 import { router, Stack } from "expo-router";
 import EventDetailScreen from "./double-scroll";
 import LeftButtonCustom from "@/components/Button/BackButton";
+import CustomUploadButton from "./upload-button";
+import { SafeAreaView } from "react-native-safe-area-context";
 
 const { width } = Dimensions.get("window");
 
@@ -117,14 +120,38 @@ const CustomTabNavigator = () => {
 
   const ActiveComponent = getActiveComponent();
 
+  const handleImageUpload = (file: any) => {
+    console.log("Gambar dipilih:", file);
+    // Upload ke server
+  };
+
+  const handlePdfOrPngUpload = (file: any) => {
+    console.log("PDF atau PNG dipilih:", file);
+  };
+
   return (
     <>
-      <Stack.Screen
-        options={{
-          title: "Custom Tab Navigator",
-        }}
-      />
-      <EventDetailScreen />
+      <SafeAreaView edges={["bottom"]} style={styles.container}>
+        <Stack.Screen
+          options={{
+            title: "Custom Tab Navigator",
+          }}
+        />
+        <EventDetailScreen />
+
+        <CustomUploadButton
+          allowedExtensions={["jpeg", "png"]}
+          buttonTitle="Unggah Gambar (JPEG/PNG)"
+          onFileSelected={handleImageUpload}
+        />
+
+        {/* Hanya PDF atau PNG */}
+        <CustomUploadButton
+          allowedExtensions={["pdf"]}
+          buttonTitle="Unggah PDF atau PNG"
+          onFileSelected={handlePdfOrPngUpload}
+        />
+      </SafeAreaView>
     </>
     // <View style={styles.container}>
     //   {/* Content Area */}
diff --git a/app/(application)/coba/upload-button.tsx b/app/(application)/coba/upload-button.tsx
new file mode 100644
index 0000000..494d014
--- /dev/null
+++ b/app/(application)/coba/upload-button.tsx
@@ -0,0 +1,99 @@
+// components/CustomUploadButton.tsx
+import React from 'react';
+import { Button, Alert, View, StyleSheet } from 'react-native';
+import * as DocumentPicker from 'expo-document-picker';
+import { isValidFileType, getMimeType } from '../../../utils/fileValidation';
+
+interface UploadButtonProps {
+  allowedExtensions: string[];
+  buttonTitle?: string;
+  onFileSelected?: (file: {
+    uri: string;
+    name: string;
+    size: number | null;
+    mimeType: string;
+  }) => void;
+}
+
+const CustomUploadButton: React.FC<UploadButtonProps> = ({
+  allowedExtensions,
+  buttonTitle = 'Pilih File',
+  onFileSelected,
+}) => {
+  const handlePickFile = async () => {
+    try {
+      // Coba filter dengan MIME type jika memungkinkan
+      const typeFilter = getMimeTypeFilter(allowedExtensions);
+
+      const result = await DocumentPicker.getDocumentAsync({
+        type: typeFilter, // Ini membantu memfilter di UI pemilih
+        copyToCacheDirectory: true,
+      });
+
+      if (result.canceled) {
+        Alert.alert('Dibatalkan', 'Tidak ada file yang dipilih.');
+        return;
+      }
+
+      const file = result.assets[0];
+      const { uri, name, size } = file;
+
+      // Validasi ekstensi secara manual (cadangan jika MIME tidak akurat)
+      if (!isValidFileType(name, allowedExtensions)) {
+        Alert.alert(
+          'Format Tidak Didukung',
+          `Hanya file dengan ekstensi berikut yang diperbolehkan: ${allowedExtensions.join(', ')}`
+        );
+        return;
+      }
+
+      const mimeType = getMimeType(name);
+
+      // Kirim data file ke komponen induk
+      if (onFileSelected) {
+        onFileSelected({ uri, name, size: size || null, mimeType });
+      }
+
+      Alert.alert('Berhasil', `File ${name} berhasil dipilih!`);
+    } catch (error) {
+      console.error('Error picking file:', error);
+      Alert.alert('Error', 'Terjadi kesalahan saat memilih file.');
+    }
+  };
+
+  return (
+    <View style={styles.container}>
+      <Button title={buttonTitle} onPress={handlePickFile} />
+    </View>
+  );
+};
+
+// Fungsi bantu untuk menghasilkan MIME type filter dari ekstensi
+const getMimeTypeFilter = (extensions: string[]): string => {
+  const mimeTypes: string[] = [];
+  extensions.forEach((ext) => {
+    switch (ext.toLowerCase()) {
+      case 'jpg':
+      case 'jpeg':
+        if (!mimeTypes.includes('image/jpeg')) mimeTypes.push('image/jpeg');
+        break;
+      case 'png':
+        if (!mimeTypes.includes('image/png')) mimeTypes.push('image/png');
+        break;
+      case 'pdf':
+        if (!mimeTypes.includes('application/pdf')) mimeTypes.push('application/pdf');
+        break;
+      default:
+        mimeTypes.push('*/*'); // fallback
+    }
+  });
+  return mimeTypes.length > 0 ? mimeTypes.join(',') : '*/*';
+};
+
+const styles = StyleSheet.create({
+  container: {
+    marginVertical: 10,
+  },
+});
+
+export default CustomUploadButton;
\ No newline at end of file
diff --git a/bun.lock b/bun.lock
index af418e5..1bce108 100644
--- a/bun.lock
+++ b/bun.lock
@@ -18,6 +18,8 @@
         "expo-camera": "~16.1.10",
         "expo-clipboard": "~7.1.5",
         "expo-constants": "~17.1.7",
+        "expo-document-picker": "~13.1.6",
+        "expo-file-system": "~18.1.11",
         "expo-font": "~13.3.2",
         "expo-haptics": "~14.1.4",
         "expo-image": "~2.3.2",
@@ -833,6 +835,8 @@
 
     "expo-constants": ["expo-constants@17.1.7", "", { "dependencies": { "@expo/config": "~11.0.12", "@expo/env": "~1.0.7" }, "peerDependencies": { "expo": "*", "react-native": "*" } }, "sha512-byBjGsJ6T6FrLlhOBxw4EaiMXrZEn/MlUYIj/JAd+FS7ll5X/S4qVRbIimSJtdW47hXMq0zxPfJX6njtA56hHA=="],
 
+    "expo-document-picker": ["expo-document-picker@13.1.6", "", { "peerDependencies": { "expo": "*" } }, "sha512-8FTQPDOkyCvFN/i4xyqzH7ELW4AsB6B3XBZQjn1FEdqpozo6rpNJRr7sWFU/93WrLgA9FJEKpKbyr6XxczK6BA=="],
+
     "expo-file-system": ["expo-file-system@18.1.11", "", { "peerDependencies": { "expo": "*", "react-native": "*" } }, "sha512-HJw/m0nVOKeqeRjPjGdvm+zBi5/NxcdPf8M8P3G2JFvH5Z8vBWqVDic2O58jnT1OFEy0XXzoH9UqFu7cHg9DTQ=="],
 
     "expo-font": ["expo-font@13.3.2", "", { "dependencies": { "fontfaceobserver": "^2.1.0" }, "peerDependencies": { "expo": "*", "react": "*" } }, "sha512-wUlMdpqURmQ/CNKK/+BIHkDA5nGjMqNlYmW0pJFXY/KE/OG80Qcavdu2sHsL4efAIiNGvYdBS10WztuQYU4X0A=="],
diff --git a/package.json b/package.json
index b790716..2e57b6f 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,8 @@
     "expo-camera": "~16.1.10",
     "expo-clipboard": "~7.1.5",
     "expo-constants": "~17.1.7",
+    "expo-document-picker": "~13.1.6",
+    "expo-file-system": "~18.1.11",
     "expo-font": "~13.3.2",
     "expo-haptics": "~14.1.4",
     "expo-image": "~2.3.2",
diff --git a/utils/fileValidation.ts b/utils/fileValidation.ts
new file mode 100644
index 0000000..6ae2010
--- /dev/null
+++ b/utils/fileValidation.ts
@@ -0,0 +1,34 @@
+// utils/fileValidation.ts
+const ALLOWED_TYPES: Record<string, string[]> = {
+  image: ["jpeg", "jpg", "png"],
+  document: ["pdf", "png"],
+  pdf: ["pdf"],
+  png: ["png"],
+};
+
+export const isValidFileType = (
+  fileName: string,
+  allowedExtensions: string[]
+): boolean => {
+  const extension = fileName.split(".").pop()?.toLowerCase();
+  return !!extension && allowedExtensions.includes(extension);
+};
+
+// Helper: Dapatkan MIME type berdasarkan ekstensi (opsional)
+export const getMimeType = (fileName: string): string => {
+  const ext = fileName.split(".").pop()?.toLowerCase();
+  switch (ext) {
+    case "jpg":
+      return "image/jpg";
+    case "jpeg":
+      return "image/jpeg";
+    case "png":
+      return "image/png";
+    case "pdf":
+      return "application/pdf";
+    default:
+      return "application/octet-stream";
+  }
+};
+
+export default ALLOWED_TYPES;