Extract Bookmarks from PDF in Python SDK

    import shutil
    import json
    import logging
    from pathlib import Path
    from asposepdfcloud import ApiClient, PdfApi, BookmarkResponse

    # Configure logging
    logging.basicConfig(level=logging.INFO, format="%(asctime)s - %(levelname)s - %(message)s")


    class Config:
        """Configuration parameters."""
        CREDENTIALS_FILE = Path(r"..\\credentials.json")
        LOCAL_FOLDER = Path(r"C:\Samples")
        PDF_DOCUMENT_NAME = "sample.pdf"
        BOOKMARK_PATH = "/5"

    class PdfBookmarks:
        """Class for managing PDF bookmarks using Aspose PDF Cloud API."""

        def __init__(self, credentials_file: Path = Config.CREDENTIALS_FILE):
            self.pdf_api = None
            self._init_api(credentials_file)

        def _init_api(self, credentials_file: Path):
            """Initialize the API client."""
            try:
                with credentials_file.open("r", encoding="utf-8") as file:
                    credentials = json.load(file)
                    api_key, app_id = credentials.get("key"), credentials.get("id")
                    if not api_key or not app_id:
                        raise ValueError("Error: Missing API keys in the credentials file.")
                    self.pdf_api = PdfApi(ApiClient(api_key, app_id))
            except (FileNotFoundError, json.JSONDecodeError, ValueError) as e:
                logging.error(f"Failed to load credentials: {e}")

        def upload_document(self):
            """Upload a PDF document to the Aspose Cloud server."""
            if self.pdf_api:
                file_path = Config.LOCAL_FOLDER / Config.PDF_DOCUMENT_NAME
                try:
                    self.pdf_api.upload_file(Config.PDF_DOCUMENT_NAME, str(file_path))
                    logging.info(f"File {Config.PDF_DOCUMENT_NAME} uploaded successfully.")
                except Exception as e:
                    logging.error(f"Failed to upload file: {e}")

        def get_bookmark(self):
            """Get bookmark for a specific PDF document using bookmark path."""    
            if self.pdf_api:
                try:
                    response : BookmarkResponse = self.pdf_api.get_bookmark( Config.PDF_DOCUMENT_NAME, Config.BOOKMARK_PATH)
                    if response.code == 200:
                        logging.info(f"Found bookmark => level: '{response.bookmark.level}' - action: '{response.bookmark.action}' - title: '{response.bookmark.title}'")
                    else:
                        logging.error(f"Failed to find bookmark for the document. Response code: {response.code}")
                except Exception as e:
                    logging.error(f"Error while find bookmark: {e}")

    if __name__ == "__main__":
        pdf_bookmarks = PdfBookmarks()
        pdf_bookmarks.upload_document()
        pdf_bookmarks.get_bookmark()