import fitz  # PyMuPDF
import streamlit as st
from PIL import Image
import io

st.set_page_config(layout="centered")
st.title("📄 PDF Reader")

uploaded_file = st.file_uploader("Upload a PDF file", type="pdf")

if uploaded_file:
    doc = fitz.open(stream=uploaded_file.read(), filetype="pdf")
    total_pages = len(doc)

    # Page selection
    page_number = st.number_input("Page", min_value=1, max_value=total_pages, value=1)

    # Render selected page
    page = doc.load_page(page_number - 1)
    pix = page.get_pixmap(matrix=fitz.Matrix(2, 2))
    img = Image.open(io.BytesIO(pix.tobytes("png")))

    st.image(img, caption=f"Page {page_number} of {total_pages}", use_column_width=True)