Update app.py

app.py

@@ -33,7 +33,6 @@ def process_files(files):
         # Load Documents
         docs = []
         for file_obj in files:
-            # Gradio passes file objects, we need their paths
             docs.extend(load_any(file_obj.name))
         
         if not docs:
@@ -43,6 +42,10 @@ def process_files(files):
         splitter = RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=50)
         chunks = splitter.split_documents(docs)
 
+        # --- SAFETY CHECK (This fixes the error) ---
+        if not chunks:
+            return None, "❌ Error: The PDF contains no selectable text. It might be a scanned image. Please convert it to Word/Text first."
+
         # Create Embeddings & Vector Store
         embeddings = HuggingFaceEmbeddings(model_name="sentence-transformers/all-MiniLM-L6-v2")
         db = FAISS.from_documents(chunks, embeddings)