Update app.py

app.py

@@ -3,7 +3,10 @@ import gradio as gr
 import tempfile
 from pathlib import Path
 import base64
-import fitz 
+import fitz  # PyMuPDF - works on HF Spaces without additional dependencies
+from PIL import Image
+import io
+
 # Import vectorstore and embeddings from langchain community package
 from langchain_community.vectorstores import FAISS
 from langchain_community.embeddings import HuggingFaceEmbeddings
@@ -11,9 +14,6 @@ from langchain_community.embeddings import HuggingFaceEmbeddings
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 # HF Inference client for multimodal model
 from huggingface_hub import InferenceClient
-# Unstructured for PDF processing with image extraction
-from unstructured.partition.pdf import partition_pdf
-from unstructured.partition.utils.constants import PartitionStrategy
 
 # ── Globals ───────────────────────────────────────────────────────────────────
 index = None               # FAISS index storing document embeddings