Update app.py

app.py

@@ -25,7 +25,7 @@ os.system("sed -i 's|cpu|cuda|g' /home/user/magic-pdf.json")
 
 os.system('cp -r paddleocr /home/user/.paddleocr')
 
-os.system("pip install -U gradio-pdf")
+os.system("pip install gradio-pdf==0.0.15")
 from gradio_pdf import PDF
 
 import gradio as gr