app.py

import gradio as gr

def read_pdf(file_obj):
    # Here, file_obj is a file object that Gradio passes to the function.
    # You can read this file object using a PDF reading library, such as PyPDF2 or pdfplumber.
    # For illustration, replace the following line with your own PDF processing logic.
    text = "Processed PDF content here"
    return text

iface = gr.Interface(
    fn=read_pdf, 
    inputs=gr.inputs.File(type="file", label="Upload PDF"), 
    outputs="text",
    title="PDF Processor",
    description="Upload a PDF file to process."
)

iface.launch()