pdflisted

# PDF 处理指南 ## 概述 本指南涵盖了使用 Python 库和命令��工具进行核心 PDF 处理操作。有关高级功能、JavaScript 库和详细示例，请参阅 REFERENCE.md。如果您需要填写 PDF 表单，请阅读 FORMS.md 并遵循其说明。 ## 快速入门 ```python from pypdf import PdfReader, PdfWriter # 读取一个 PDF reader = PdfReader("document.pdf") print(f"Pages: {len(reader.pages)}") # 提取文本 text = "" for page in reader.pages: text += page.extract_text() ``` ## Python 库 ### pypdf - 基本操作 #### 合并 PDF ```python from pypdf import PdfWriter, PdfReader writer = PdfWriter() for pdf_file in ["doc1.pdf", "doc2.pdf", "doc3.pdf"]: reader = PdfReader(pdf_file) for page in reader.pages: writer.add_page(page) with open("merged.pdf", "wb") as output: writer.write(output) ``` #### 拆分 PDF ```python reader = PdfReader("input.pdf") for i, page in enumerate(reader.pages): writer = PdfWriter() writer.add_page(page) with open(f"page_{i+1}.pdf", "wb") as output: writer.write(output) ``` #### 提取元数据 ```python reader = PdfReader("document.pdf") meta = reader.metadata print(f"Title: {meta.title}") print(f"Author: {meta.author}") print(f"Subject: {meta.subject}") print(f"Creator: {meta.creator}") ``` #### 旋转页面 ```python reader = PdfReader("input.pdf") writer = PdfWriter() page = reader.pages[0] page.rotate(90) # 顺时针旋转 90 度 writer.add_page(page) with open("rotated.pdf", "wb") as output: writer.write(output) ``` ### pdfplumber - 文本和表格提取 #### 提取带布局的文本 ```python import pdfplumber with pdfplumber.open("document.pdf") as pdf: for page in pdf.pages: