Update app.py

app.py

@@ -214,18 +214,18 @@ def load_pdf_and_prepare(pdf_file):
         chunks = chunk_text(text)
         index = embed_chunks(chunks)
         pdf_loaded = True
-        return "✅ PDF uploaded and processed successfully."
+        return " PDF uploaded and processed successfully."
     except Exception as e:
-        return f"❌ Error: {str(e)}"
+        return f" Error: {str(e)}"
 
 def delete_pdf():
     global chunks, index, pdf_loaded
     chunks, index, pdf_loaded = [], None, False
-    return "🗑️ PDF cleared. Ready for new upload."
+    return " PDF cleared. Ready for new upload."
 
 def query_pdf(question, top_k=3):
     if not pdf_loaded:
-        return "⚠️ Please upload and process a PDF first."
+        return " Please upload and process a PDF first."
     question_embedding = embed_model.encode([question])
     D, I = index.search(np.array(question_embedding), top_k)
     context = "\n".join([chunks[i] for i in I[0]])