bq-connector/docai_bq_connector/helper/pdf_util.py

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
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from io import BytesIO

from pypdf import PdfReader


def get_pdf_page_cnt(pdf_doc: bytes):
    """
    Get the page count of the PDFs
    Args:
        pdf_doc:
    Returns:
        integer
    """
    pdf_file = BytesIO(pdf_doc)
    reader = PdfReader(pdf_file)
    num_pages = len(reader.pages)
    return num_pages