HTML
JPG
PDF
XML
DOCX
PDF
如何使用 Cloud Python SDK 在 PDF 文档中附加附件
为了处理 PDF 文档中的附件，我们将使用 Aspose.PDF Cloud Python SDK 该 Cloud SDK 协助 Python 程序员使用 Python 编程语言通过 Aspose.PDF REST API 开发基于云的 PDF 创建、注释、编辑和转换应用程序。只需在 Aspose for Cloud 上创建一个账户并获取您的应用程序信息。一旦拥有 App SID 和密钥，您就可以使用 Aspose.PDF Cloud Python SDK。如果 Python 包托管在 Github 上，您可以直接从 Github 安装：
从 Github 安装
pip install git+https://github.com/aspose-pdf-cloud/aspose-pdf-cloud-python.git
包管理器控制台命令
pip install asposepdfcloud
通过 Python SDK 添加附件的步骤
Aspose.PDF Cloud Python 开发人员可以轻松在 PDF 文档中附加附件。开发人员只需几行代码。
- 从 JSON 文件加载您的应用程序秘密和密钥或以其他方式设置凭据
- 创建一个对象以连接到 Cloud API
- 设置文档文件的名称和路径
- 执行附加附件的操作
- 如果成功，修改后的 PDF 将被下载并保存到指定文件
- 如果在过程中发生任何错误，将被捕获并打印
此示例代码显示如何使用 PDF Cloud Python SDK 向 PDF 文档附加文件
import shutil
import json
import logging
from pathlib import Path
from asposepdfcloud import ApiClient, PdfApi, AttachmentInfo
# Configure logging
logging.basicConfig(level=logging.INFO, format="%(asctime)s - %(levelname)s - %(message)s")
class Config:
"""Configuration parameters."""
CREDENTIALS_FILE = Path(r"C:\\Projects\\ASPOSE\\Pdf.Cloud\\Credentials\\credentials.json")
LOCAL_FOLDER = Path(r"C:\Samples")
PDF_DOCUMENT_NAME = "sample.pdf"
LOCAL_RESULT_DOCUMENT_NAME = "output_sample.pdf"
NEW_ATTACHMENT_FILE = "sample_video.mp4"
NEW_ATTACHMENT_MIME = "video/mp4"
PAGE_NUMBER = 2
class PdfAttachments:
"""Class for managing PDF attachments 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("init_api(): 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"init_api(): Failed to load credentials: {e}")
def upload_file(self, fileName: str):
""" Upload a local fileName to the Aspose Cloud server. """
if self.pdf_api:
file_path = Config.LOCAL_FOLDER / fileName
try:
self.pdf_api.upload_file(fileName, str(file_path))
logging.info(f"upload_file(): File '{fileName}' uploaded successfully.")
except Exception as e:
logging.error(f"upload_document(): Failed to upload file: {e}")
def upload_document(self):
""" Upload a PDF document to the Aspose Cloud server. """
self.upload_file(Config.PDF_DOCUMENT_NAME)
def download_result(self):
""" Download the processed PDF document from the Aspose Cloud server. """
if self.pdf_api:
try:
temp_file = self.pdf_api.download_file(Config.PDF_DOCUMENT_NAME)
local_path = Config.LOCAL_FOLDER / Config.LOCAL_RESULT_DOCUMENT_NAME
shutil.move(temp_file, str(local_path))
logging.info(f"download_result(): File successfully downloaded: {local_path}")
except Exception as e:
logging.error(f"download_result(): Failed to download file: {e}")
def append_attachmnet(self):
"""Append a new attachment to the PDF document."""
if self.pdf_api:
new_attachment = AttachmentInfo(
path = Config.NEW_ATTACHMENT_FILE,
description = 'This is a sample attachment',
mime_type = Config.NEW_ATTACHMENT_MIME,
name = Config.NEW_ATTACHMENT_FILE
)
try:
response = self.pdf_api.post_add_document_attachment(Config.PDF_DOCUMENT_NAME, new_attachment)
if response.code == 200:
logging.info(f"append_attachment(): attachment '{Config.NEW_ATTACHMENT_FILE}' added to the document '{Config.PDF_DOCUMENT_NAME}'.")
else:
logging.error(f"append_attachment(): Failed to add attachment to the document. Response code: {response.code}")
except Exception as e:
logging.error(f"append_attachment(): Error while adding attachment: {e}")
if __name__ == "__main__":
pdf_attachments = PdfAttachments()
pdf_attachments.upload_document()
pdf_attachments.upload_file(Config.NEW_ATTACHMENT_FILE)
pdf_attachments.append_attachmnet()
pdf_attachments.download_result()