diff --git a/src/lib/modules/filesystem.ts b/src/lib/modules/filesystem.ts
index 40e8cd4..6009b60 100644
--- a/src/lib/modules/filesystem.ts
+++ b/src/lib/modules/filesystem.ts
@@ -40,6 +40,7 @@ export type DirectoryInfo =
 
 export interface FileInfo {
   id: number;
+  parentId: DirectoryId;
   dataKey?: CryptoKey;
   dataKeyVersion?: Date;
   contentType: string;
@@ -199,6 +200,7 @@ const fetchFileInfoFromServer = async (
 
   info.set({
     id,
+    parentId: metadata.parent,
     dataKey,
     dataKeyVersion: new Date(metadata.dekVersion),
     contentType: metadata.contentType,
diff --git a/src/routes/(fullscreen)/file/[id]/+page.svelte b/src/routes/(fullscreen)/file/[id]/+page.svelte
index 4047e7c..3249bf2 100644
--- a/src/routes/(fullscreen)/file/[id]/+page.svelte
+++ b/src/routes/(fullscreen)/file/[id]/+page.svelte
@@ -3,6 +3,7 @@
   import { untrack } from "svelte";
   import { get, type Writable } from "svelte/store";
   import { goto } from "$app/navigation";
+  import { page } from "$app/state";
   import { FullscreenDiv } from "$lib/components/atoms";
   import { Categories, IconEntryButton, TopBar } from "$lib/components/molecules";
   import {
@@ -21,7 +22,9 @@
     requestThumbnailUpload,
     requestFileAdditionToCategory,
   } from "./service";
+  import TopBarMenu from "./TopBarMenu.svelte";
 
+  import IconMoreVert from "~icons/material-symbols/more-vert";
   import IconCamera from "~icons/material-symbols/camera";
   import IconClose from "~icons/material-symbols/close";
   import IconAddCircle from "~icons/material-symbols/add-circle";
@@ -31,6 +34,7 @@
   let info: Writable<FileInfo | null> | undefined = $state();
   let categories: Writable<CategoryInfo | null>[] = $state([]);
 
+  let isMenuOpen = $state(false);
   let isAddToCategoryBottomSheetOpen = $state(false);
 
   let downloadStatus = $derived(
@@ -42,30 +46,26 @@
 
   let isDownloadRequested = $state(false);
   let viewerType: "image" | "video" | undefined = $state();
+  let fileBlob: Blob | undefined = $state();
   let fileBlobUrl: string | undefined = $state();
-  let heicBlob: Blob | undefined = $state();
   let videoElement: HTMLVideoElement | undefined = $state();
 
   const updateViewer = async (buffer: ArrayBuffer, contentType: string) => {
-    const fileBlob = new Blob([buffer], { type: contentType });
-    if (viewerType) {
-      fileBlobUrl = URL.createObjectURL(fileBlob);
-      heicBlob = contentType === "image/heic" ? fileBlob : undefined;
-    }
+    fileBlob = new Blob([buffer], { type: contentType });
+    fileBlobUrl = URL.createObjectURL(fileBlob);
     return fileBlob;
   };
 
   const convertHeicToJpeg = async () => {
-    if (!heicBlob) return;
+    if (fileBlob?.type !== "image/heic") return;
 
     URL.revokeObjectURL(fileBlobUrl!);
     fileBlobUrl = undefined;
 
     const { default: heic2any } = await import("heic2any");
     fileBlobUrl = URL.createObjectURL(
-      (await heic2any({ blob: heicBlob, toType: "image/jpeg" })) as Blob,
+      (await heic2any({ blob: fileBlob, toType: "image/jpeg" })) as Blob,
     );
-    heicBlob = undefined;
   };
 
   const updateThumbnail = async (dataKey: CryptoKey, dataKeyVersion: Date) => {
@@ -133,7 +133,24 @@
   <title>파일</title>
 </svelte:head>
 
-<TopBar title={$info?.name} />
+<TopBar title={$info?.name}>
+  <!-- svelte-ignore a11y_no_static_element_interactions -->
+  <!-- svelte-ignore a11y_click_events_have_key_events -->
+  <div onclick={(e) => e.stopPropagation()}>
+    <button
+      onclick={() => (isMenuOpen = !isMenuOpen)}
+      class="w-[2.3rem] flex-shrink-0 rounded-full p-1 active:bg-black active:bg-opacity-[0.04]"
+    >
+      <IconMoreVert class="text-2xl" />
+    </button>
+    <TopBarMenu
+      bind:isOpen={isMenuOpen}
+      directoryId={page.url.searchParams.get("from") === "category" ? $info?.parentId : undefined}
+      {fileBlob}
+      filename={$info?.name}
+    />
+  </div>
+</TopBar>
 <FullscreenDiv>
   <div class="space-y-4 pb-4">
     <DownloadStatus status={downloadStatus} />
diff --git a/src/routes/(fullscreen)/file/[id]/TopBarMenu.svelte b/src/routes/(fullscreen)/file/[id]/TopBarMenu.svelte
new file mode 100644
index 0000000..8c92986
--- /dev/null
+++ b/src/routes/(fullscreen)/file/[id]/TopBarMenu.svelte
@@ -0,0 +1,58 @@
+<script lang="ts">
+  import FileSaver from "file-saver";
+  import type { Component } from "svelte";
+  import type { SvelteHTMLElements } from "svelte/elements";
+  import { fly } from "svelte/transition";
+  import { goto } from "$app/navigation";
+
+  import IconFolderOpen from "~icons/material-symbols/folder-open";
+  import IconCloudDownload from "~icons/material-symbols/cloud-download";
+
+  interface Props {
+    directoryId?: "root" | number;
+    fileBlob?: Blob;
+    filename?: string;
+    isOpen: boolean;
+  }
+
+  let { directoryId, fileBlob, filename, isOpen = $bindable() }: Props = $props();
+</script>
+
+<svelte:window onclick={() => (isOpen = false)} />
+
+{#if isOpen && (directoryId || fileBlob)}
+  <div
+    class="absolute right-2 top-full z-20 space-y-1 rounded-lg bg-white px-1 py-2 shadow-2xl"
+    transition:fly={{ y: -8, duration: 200 }}
+  >
+    <p class="px-3 pt-2 text-sm font-semibold text-gray-600">더보기</p>
+    <div class="flex flex-col">
+      {#snippet menuButton(
+        Icon: Component<SvelteHTMLElements["svg"]>,
+        text: string,
+        onclick: () => void,
+      )}
+        <button {onclick} class="rounded-xl active:bg-gray-100">
+          <div
+            class="flex items-center gap-x-3 px-3 py-2 text-lg text-gray-700 transition active:scale-95"
+          >
+            <Icon />
+            <p class="font-medium">{text}</p>
+          </div>
+        </button>
+      {/snippet}
+
+      {#if directoryId}
+        {@render menuButton(IconFolderOpen, "폴더에서 보기", () =>
+          goto(directoryId === "root" ? "/directory" : `/directory/${directoryId}`),
+        )}
+      {/if}
+      {#if fileBlob}
+        {@render menuButton(IconCloudDownload, "다운로드", () => {
+          console.log(filename);
+          FileSaver.saveAs(fileBlob, filename);
+        })}
+      {/if}
+    </div>
+  </div>
+{/if}
diff --git a/src/routes/(main)/category/[[id]]/+page.svelte b/src/routes/(main)/category/[[id]]/+page.svelte
index 9cbc41c..9b3e195 100644
--- a/src/routes/(main)/category/[[id]]/+page.svelte
+++ b/src/routes/(main)/category/[[id]]/+page.svelte
@@ -58,7 +58,7 @@
     <Category
       bind:isFileRecursive
       info={$info}
-      onFileClick={({ id }) => goto(`/file/${id}`)}
+      onFileClick={({ id }) => goto(`/file/${id}?from=category`)}
       onFileRemoveClick={async ({ id }) => {
         await requestFileRemovalFromCategory(id, data.id as number);
         info = getCategoryInfo(data.id, $masterKeyStore?.get(1)?.key!); // TODO: FIXME