diff --git a/app/(application)/announcement/create.tsx b/app/(application)/announcement/create.tsx
index f487e4f..860057f 100644
--- a/app/(application)/announcement/create.tsx
+++ b/app/(application)/announcement/create.tsx
@@ -102,9 +102,16 @@ export default function CreateAnnouncement() {
    const pickDocumentAsync = async () => {
       const result = await DocumentPicker.getDocumentAsync({ type: ["*/*"], multiple: true });
       if (!result.canceled) {
+         let skipped = 0
          for (const asset of result.assets) {
-            if (asset.uri) setFileForm(prev => [...prev, asset])
+            if (!asset.uri) continue
+            if (fileForm.some(f => f.name === asset.name)) {
+               skipped++
+            } else {
+               setFileForm(prev => [...prev, asset])
+            }
          }
+         if (skipped > 0) Toast.show({ type: 'small', text1: 'Beberapa file sudah ditambahkan' })
       }
    };
 
diff --git a/app/(application)/announcement/edit/[id].tsx b/app/(application)/announcement/edit/[id].tsx
index ff90f89..3f106e2 100644
--- a/app/(application)/announcement/edit/[id].tsx
+++ b/app/(application)/announcement/edit/[id].tsx
@@ -131,9 +131,18 @@ export default function EditAnnouncement() {
    const pickDocumentAsync = async () => {
       const result = await DocumentPicker.getDocumentAsync({ type: ["*/*"], multiple: true });
       if (!result.canceled) {
+         let skipped = 0
          for (const asset of result.assets) {
-            if (asset.uri) setFileForm(prev => [...prev, asset])
+            if (!asset.uri) continue
+            const isDup = fileForm.some(f => f.name === asset.name) ||
+               visibleOldFiles.some(f => `${f.name}.${f.extension}` === asset.name)
+            if (isDup) {
+               skipped++
+            } else {
+               setFileForm(prev => [...prev, asset])
+            }
          }
+         if (skipped > 0) Toast.show({ type: 'small', text1: 'Beberapa file sudah ditambahkan' })
       }
    };