diff --git a/Dockerfile b/Dockerfile
index 47ec7cd..8cb9837 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,6 +3,15 @@ FROM node:20-bookworm-slim
 RUN apt-get update && apt-get install -y \
   libheif1 libheif-dev \
   libvips libvips-dev \
+  \
+  # HEIC/HEIF decode support (common iPhone HEVC variants)
+  libde265-0 \
+  libheif-plugin-libde265 \
+  \
+  # Additional decoder plugin (if available in repo; improves compatibility)
+  libheif-plugin-ffmpegdec \
+  \
+  # PDF rendering
   poppler-utils \
   && rm -rf /var/lib/apt/lists/*