Update src/streamlit_app.py

src/streamlit_app.py

@@ -76,7 +76,8 @@ elif doc_choice == "Sample PDF":
 elif doc_choice == "Upload Custom PDF":
     uploaded_file = st.file_uploader("📂 Upload your PDF", type="pdf")
     if uploaded_file:
-        temp_path = "temp.pdf"
+        # Always write to /tmp (the only guaranteed writable folder)
+        temp_path = os.path.join("/tmp", uploaded_file.name)
         with open(temp_path, "wb") as f:
             f.write(uploaded_file.getbuffer())
         st.success("✅ Document uploaded and processed!")