diff --git a/frontend/src/lib/components/PdfViewer.svelte b/frontend/src/lib/components/PdfViewer.svelte
index 6c3deb33..323c3cc6 100644
--- a/frontend/src/lib/components/PdfViewer.svelte
+++ b/frontend/src/lib/components/PdfViewer.svelte
@@ -403,54 +403,45 @@ function zoomOut() {
 					title="Farbe wählen"
 				/>
 			{/if}
-		</div>
-
-		<!-- Annotation visibility toggle (shown when annotations exist) -->
-		{#if annotations.length > 0}
-			<button
-				onclick={() => (showAnnotations = !showAnnotations)}
-				aria-label={showAnnotations ? m.pdf_annotations_hide() : m.pdf_annotations_show()}
-				title={showAnnotations ? m.pdf_annotations_hide() : m.pdf_annotations_show()}
-				class="rounded p-1 transition {showAnnotations
+			<!-- Annotation visibility toggle (shown when annotations exist) -->
+			{#if annotations.length > 0}
+				<button
+					onclick={() => (showAnnotations = !showAnnotations)}
+					aria-label={showAnnotations ? m.pdf_annotations_hide() : m.pdf_annotations_show()}
+					class="flex items-center gap-1.5 rounded px-2 py-1 font-sans text-xs transition {showAnnotations
 						? 'text-gray-300 hover:bg-white/10'
 						: 'bg-white/10 text-brand-mint'}"
-			>
-				{#if showAnnotations}
+				>
 					<svg
-						class="h-4 w-4"
+						class="h-3.5 w-3.5 shrink-0"
 						viewBox="0 0 24 24"
 						fill="none"
 						stroke="currentColor"
 						stroke-width="2"
 					>
-						<path
-							stroke-linecap="round"
-							stroke-linejoin="round"
-							d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"
-						/>
-						<path
-							stroke-linecap="round"
-							stroke-linejoin="round"
-							d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z"
-						/>
+						{#if showAnnotations}
+							<path
+								stroke-linecap="round"
+								stroke-linejoin="round"
+								d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"
+							/>
+							<path
+								stroke-linecap="round"
+								stroke-linejoin="round"
+								d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z"
+							/>
+						{:else}
+							<path
+								stroke-linecap="round"
+								stroke-linejoin="round"
+								d="M13.875 18.825A10.05 10.05 0 0112 19c-4.478 0-8.268-2.943-9.543-7a9.97 9.97 0 011.563-3.029m5.858.908a3 3 0 114.243 4.243M9.878 9.878l4.242 4.242M9.88 9.88l-3.29-3.29m7.532 7.532l3.29 3.29M3 3l3.59 3.59m0 0A9.953 9.953 0 0112 5c4.478 0 8.268 2.943 9.543 7a10.025 10.025 0 01-4.132 5.411m0 0L21 21"
+							/>
+						{/if}
 					</svg>
-				{:else}
-					<svg
-						class="h-4 w-4"
-						viewBox="0 0 24 24"
-						fill="none"
-						stroke="currentColor"
-						stroke-width="2"
-					>
-						<path
-							stroke-linecap="round"
-							stroke-linejoin="round"
-							d="M13.875 18.825A10.05 10.05 0 0112 19c-4.478 0-8.268-2.943-9.543-7a9.97 9.97 0 011.563-3.029m5.858.908a3 3 0 114.243 4.243M9.878 9.878l4.242 4.242M9.88 9.88l-3.29-3.29m7.532 7.532l3.29 3.29M3 3l3.59 3.59m0 0A9.953 9.953 0 0112 5c4.478 0 8.268 2.943 9.543 7a10.025 10.025 0 01-4.132 5.411m0 0L21 21"
-						/>
-					</svg>
-				{/if}
-			</button>
-		{/if}
+					{showAnnotations ? m.pdf_annotations_hide() : m.pdf_annotations_show()}
+				</button>
+			{/if}
+		</div>
 
 		<!-- PDF canvas area -->
 		<div class="relative flex-1 overflow-auto">