py-pdf/PyPDF2
PyPDF2
PyPDF2 是一个纯 Python 库，用于转换、保护 PDF 文档并从中提取数据。它提供了一套全面的工具来修改页面布局、管理文档安全并检索嵌入的元数据，而无需依赖外部 C 语言库。
该工具包通过合并多个文件和将文档拆分为较小的部分来实现文档组装。它还支持页面级转换，包括旋转页面和调整可见裁剪区域的能力。
该库包括通过基于密码的加密和解密进行安全管理的功能。此外，它还提供了从 PDF 文件中提取书面文本和管理属性的工具。
Features
- PDF Parsers - Provides a pure-Python parser to convert raw PDF binary data into structured Python objects.
- Password-Based Encryption - Implements standard PDF security algorithms for encrypting and decrypting document streams using passwords.
- PDF Security Management - Manages password encryption, user permissions, and access controls for PDF documents.
- PDF Libraries - A pure-Python library for parsing and manipulating PDF documents without external dependencies.
- PDF Document Management - Offers a comprehensive toolkit for combining, splitting, and reorganizing PDF pages.
- PDF Manipulation Libraries - A low-level library for splitting, merging, and modifying PDF byte streams.
- PDF Text Extraction - Parses binary PDF files to retrieve written content and embedded metadata for external use.
- PDF Metadata Managers - Provides tools to manage and edit internal property fields and viewing options in PDF documents.
- Text Extractors - Retrieves written text and structural metadata from PDF layers.
- Document Splitting and Merging - Provides operations to both combine multiple PDFs and divide single documents into smaller files.
- PDF Page Extraction - Extracts specific pages or ranges from a large PDF to create smaller files.
- Content Stream Manipulations - Allows low-level modification of raw operator sequences within the PDF content stream.
- PDF Document Merging - Combines multiple PDF files or specific page ranges into a single document.
- PDF Encryptions and Decryptions - Implements password-based encryption and decryption to secure PDF documents.
- Document Object Models - Represents PDF elements as a hierarchical tree of Python objects for programmatic manipulation.
- Documentation and Processing - Library for reading and writing PDF files.
