Update app.py

app.py

@@ -66,7 +66,7 @@ def extract_metadata(pdf_path):
     return title, author, email_str, affiliation_str
 
 # ----------------- PDF Selection -----------------
-pdf_source = st.radio("Choose a PDF source:", ["Upload a PDF file", "Enter a PDF URL"], index=0, horizontal=True)
+pdf_source = st.radio("Upload or provide a link to a PDF:", ["Upload a PDF file", "Enter a PDF URL"], index=0, horizontal=True)
 
 if pdf_source == "Upload a PDF file":
     uploaded_file = st.file_uploader("Upload your PDF file", type=["pdf"])