Adobe

request_adobe_service

request_adobe_service(file_path, output_path='')

Main function to call the adobe service, and unzip the results. Args: file_path (str): path to the pdf file output_path (str): path to store the results

Returns:

Name	Type	Description
output_path	str	path to the results

Source code in libs/kotaemon/kotaemon/loaders/utils/adobe.py

def request_adobe_service(file_path: str, output_path: str = "") -> str:
    """Main function to call the adobe service, and unzip the results.
    Args:
        file_path (str): path to the pdf file
        output_path (str): path to store the results

    Returns:
        output_path (str): path to the results

    """
    try:
        from adobe.pdfservices.operation.auth.credentials import Credentials
        from adobe.pdfservices.operation.exception.exceptions import (
            SdkException,
            ServiceApiException,
            ServiceUsageException,
        )
        from adobe.pdfservices.operation.execution_context import ExecutionContext
        from adobe.pdfservices.operation.io.file_ref import FileRef
        from adobe.pdfservices.operation.pdfops.extract_pdf_operation import (
            ExtractPDFOperation,
        )
        from adobe.pdfservices.operation.pdfops.options.extractpdf.extract_element_type import (  # noqa: E501
            ExtractElementType,
        )
        from adobe.pdfservices.operation.pdfops.options.extractpdf.extract_pdf_options import (  # noqa: E501
            ExtractPDFOptions,
        )
        from adobe.pdfservices.operation.pdfops.options.extractpdf.extract_renditions_element_type import (  # noqa: E501
            ExtractRenditionsElementType,
        )
    except ImportError:
        raise ImportError(
            "pdfservices-sdk is not installed. "
            "Please install it by running `pip install pdfservices-sdk"
            "@git+https://github.com/niallcm/pdfservices-python-sdk.git"
            "@bump-and-unfreeze-requirements`"
        )

    if not output_path:
        output_path = tempfile.mkdtemp()

    try:
        # Initial setup, create credentials instance.
        credentials = (
            Credentials.service_principal_credentials_builder()
            .with_client_id(config("PDF_SERVICES_CLIENT_ID", default=""))
            .with_client_secret(config("PDF_SERVICES_CLIENT_SECRET", default=""))
            .build()
        )

        # Create an ExecutionContext using credentials
        # and create a new operation instance.
        execution_context = ExecutionContext.create(credentials)
        extract_pdf_operation = ExtractPDFOperation.create_new()

        # Set operation input from a source file.
        source = FileRef.create_from_local_file(file_path)
        extract_pdf_operation.set_input(source)

        # Build ExtractPDF options and set them into the operation
        extract_pdf_options: ExtractPDFOptions = (
            ExtractPDFOptions.builder()
            .with_elements_to_extract(
                [ExtractElementType.TEXT, ExtractElementType.TABLES]
            )
            .with_elements_to_extract_renditions(
                [
                    ExtractRenditionsElementType.TABLES,
                    ExtractRenditionsElementType.FIGURES,
                ]
            )
            .build()
        )
        extract_pdf_operation.set_options(extract_pdf_options)

        # Execute the operation.
        result: FileRef = extract_pdf_operation.execute(execution_context)

        # Save the result to the specified location.
        zip_file_path = os.path.join(
            output_path, "ExtractTextTableWithFigureTableRendition.zip"
        )
        result.save_as(zip_file_path)
        # Open the ZIP file
        with zipfile.ZipFile(zip_file_path, "r") as zip_ref:
            # Extract all contents to the destination folder
            zip_ref.extractall(output_path)
    except (ServiceApiException, ServiceUsageException, SdkException):
        logging.exception("Exception encountered while executing operation")

    return output_path

make_markdown_table

make_markdown_table(table_as_list)

Convert table from python list representation to markdown format. The input list consists of rows of tables, the first row is the header.

Parameters:

Name	Type	Description	Default
table_as_list	List[List[str]]	list of table rows Example: [["Name", "Age", "Height"], ["Jake", 20, 5'10], ["Mary", 21, 5'7]]	required

Returns: markdown representation of the table

Source code in libs/kotaemon/kotaemon/loaders/utils/adobe.py

def make_markdown_table(table_as_list: List[List[str]]) -> str:
    """
    Convert table from python list representation to markdown format.
    The input list consists of rows of tables, the first row is the header.

    Args:
        table_as_list: list of table rows
            Example: [["Name", "Age", "Height"],
                    ["Jake", 20, 5'10],
                    ["Mary", 21, 5'7]]
    Returns:
        markdown representation of the table
    """
    markdown = "\n" + str("| ")

    for e in table_as_list[0]:
        to_add = " " + str(e) + str(" |")
        markdown += to_add
    markdown += "\n"

    markdown += "| "
    for i in range(len(table_as_list[0])):
        markdown += str("--- | ")
    markdown += "\n"

    for entry in table_as_list[1:]:
        markdown += str("| ")
        for e in entry:
            to_add = str(e) + str(" | ")
            markdown += to_add
        markdown += "\n"

    return markdown + "\n"

load_json

load_json(input_path)

Load json file

Source code in libs/kotaemon/kotaemon/loaders/utils/adobe.py

def load_json(input_path: Union[str | Path]) -> dict:
    """Load json file"""
    with open(input_path, "r") as fi:
        data = json.load(fi)

    return data

load_excel

load_excel(input_path)

Load excel file and convert to markdown

Source code in libs/kotaemon/kotaemon/loaders/utils/adobe.py

def load_excel(input_path: Union[str | Path]) -> str:
    """Load excel file and convert to markdown"""

    df = pd.read_excel(input_path).fillna("")
    # Convert dataframe to a list of rows
    row_list = [df.columns.values.tolist()] + df.values.tolist()

    for item_id, item in enumerate(row_list[0]):
        if "Unnamed" in item:
            row_list[0][item_id] = ""

    for row in row_list:
        for item_id, item in enumerate(row):
            row[item_id] = str(item).replace("_x000D_", " ").replace("\n", " ").strip()

    markdown_str = make_markdown_table(row_list)
    return markdown_str

encode_image_base64

encode_image_base64(image_path)

Convert image to base64

Source code in libs/kotaemon/kotaemon/loaders/utils/adobe.py

def encode_image_base64(image_path: Union[str | Path]) -> Union[bytes, str]:
    """Convert image to base64"""

    with open(image_path, "rb") as image_file:
        return base64.b64encode(image_file.read()).decode("utf-8")

parse_table_paths

parse_table_paths(file_paths)

Read the table stored in an excel file given the file path

Source code in libs/kotaemon/kotaemon/loaders/utils/adobe.py

def parse_table_paths(file_paths: List[Path]) -> str:
    """Read the table stored in an excel file given the file path"""

    content = ""
    for path in file_paths:
        if path.suffix == ".xlsx":
            content = load_excel(path)
            break
    return content

parse_figure_paths

parse_figure_paths(file_paths)

Read and convert an image to base64 given the image path

Source code in libs/kotaemon/kotaemon/loaders/utils/adobe.py

def parse_figure_paths(file_paths: List[Path]) -> Union[bytes, str]:
    """Read and convert an image to base64 given the image path"""

    content = ""
    for path in file_paths:
        if path.suffix == ".png":
            base64_image = encode_image_base64(path)
            content = f"data:image/png;base64,{base64_image}"  # type: ignore
            break
    return content

generate_figure_captions

generate_figure_captions(
    vlm_endpoint, figures, max_figures_to_process
)

Summarize several figures using GPT-4V. Args: vlm_endpoint (str): endpoint to the vision language model service figures (List): list of base64 images max_figures_to_process (int): the maximum number of figures will be summarized, the rest are ignored.

Returns:

Name	Type	Description
results	List[str]	list of all figure captions and empty strings for
	List	ignored figures.

Source code in libs/kotaemon/kotaemon/loaders/utils/adobe.py

def generate_figure_captions(
    vlm_endpoint: str, figures: List, max_figures_to_process: int
) -> List:
    """Summarize several figures using GPT-4V.
    Args:
        vlm_endpoint (str): endpoint to the vision language model service
        figures (List): list of base64 images
        max_figures_to_process (int): the maximum number of figures will be summarized,
        the rest are ignored.

    Returns:
        results (List[str]): list of all figure captions and empty strings for
        ignored figures.
    """
    to_gen_figures = figures[:max_figures_to_process]
    other_figures = figures[max_figures_to_process:]

    with ThreadPoolExecutor() as executor:
        futures = [
            executor.submit(
                lambda: generate_single_figure_caption(vlm_endpoint, figure)
            )
            for figure in to_gen_figures
        ]

    results = [future.result() for future in futures]
    return results + [""] * len(other_figures)