James R. Barlow
089f46690a
Replaces os.path/open()/os.stat()/os.chmod() calls with their Path method equivalents across src, tests, misc, and bin, wrapping str variables in Path(...) where they must stay str for other uses (e.g. subprocess argv, CLI-arg formatting). helpers.safe_symlink() now decodes StrOrBytesPath to a str Path via os.fsdecode() upfront, same pattern already used elsewhere for the str|bytes union.
83 lines
2.5 KiB
Python
83 lines
2.5 KiB
Python
# SPDX-FileCopyrightText: 2025 James R. Barlow
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# SPDX-License-Identifier: MIT
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"""Compare two PDFs."""
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from __future__ import annotations
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from io import BytesIO
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from pathlib import Path
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from tempfile import TemporaryDirectory
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import pikepdf
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import pymupdf
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import streamlit as st
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from lxml import etree
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from streamlit_pdf_viewer import pdf_viewer
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def do_metadata(pdf):
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with pikepdf.open(pdf) as pdf:
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with pdf.open_metadata() as meta:
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xml_txt = str(meta)
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parser = etree.XMLParser(remove_blank_text=True)
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tree = etree.fromstring(xml_txt, parser=parser)
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st.code(
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etree.tostring(tree, pretty_print=True).decode("utf-8"),
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language="xml",
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)
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st.write(pdf.docinfo)
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st.write("Number of pages:", len(pdf.pages))
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def main():
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st.set_page_config(layout="wide")
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st.title("PDF Compare")
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st.write("Compare two PDFs.")
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col1, col2 = st.columns(2)
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with col1:
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uploaded_pdf1 = st.file_uploader("Upload a PDF", type=["pdf"], key='pdf1')
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with col2:
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uploaded_pdf2 = st.file_uploader("Upload a PDF", type=["pdf"], key='pdf2')
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if uploaded_pdf1 is None or uploaded_pdf2 is None:
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return
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pdf_bytes1 = uploaded_pdf1.getvalue()
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pdf_bytes2 = uploaded_pdf2.getvalue()
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with st.expander("PDF Metadata"):
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col1, col2 = st.columns(2)
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with col1:
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do_metadata(BytesIO(pdf_bytes1))
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with col2:
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do_metadata(BytesIO(pdf_bytes2))
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with TemporaryDirectory() as d:
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Path(d, "1.pdf").write_bytes(pdf_bytes1)
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Path(d, "2.pdf").write_bytes(pdf_bytes2)
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with st.expander("Text"):
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doc1 = pymupdf.open(Path(d, "1.pdf"))
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doc2 = pymupdf.open(Path(d, "2.pdf"))
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for i, page1_2 in enumerate(zip(doc1, doc2, strict=False)):
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st.write(f"Page {i + 1}")
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page1, page2 = page1_2
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col1, col2 = st.columns(2)
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with col1, st.container(border=True):
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st.write(page1.get_text())
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with col2, st.container(border=True):
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st.write(page2.get_text())
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with st.expander("PDF Viewer"):
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col1, col2 = st.columns(2)
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with col1:
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pdf_viewer(Path(d, "1.pdf"), key='pdf_viewer1', render_text=True)
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with col2:
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pdf_viewer(Path(d, "2.pdf"), key='pdf_viewer2', render_text=True)
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if __name__ == "__main__":
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main()
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