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pdf

Work with PDF files to extract text, tables, and images, combine or split documents, rotate pages, and create new PDFs. It also covers forms, watermarks, password protection, and OCR, which recognizes text in scanned pages.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

원문원문 설명 보기

当用户需要对PDF文件进行任何操作时,请使用此技能。包括从 PDF 中读取或提取文本/表格、合并多个 PDF、拆分 PDF、旋转页面、添加水印、创建新PDF、填写PDF表单、加密/解密 PDF、提取图片,以及对扫描版 PDF 进行 OCR 使其可搜索。如果用户提到 .pdf 文件或要求生成 PDF,请使用此技能。

설치 방법 보기

이럴 때 유용합니다

  • Extracting text and tables from PDFs
  • Combining documents or splitting pages
  • Recognizing text in scanned PDFs
  • Creating PDFs and filling forms

포함된 파일(12)

  • SKILL.md8.3 KB
  • forms.md11.3 KB
  • LICENSE.txt1.4 KB
  • reference.md15.7 KB
  • scripts/check_bounding_boxes.py2.7 KB
  • scripts/check_fillable_fields.py268 B
  • scripts/convert_pdf_to_images.py1008 B
  • scripts/create_validation_image.py1.2 KB
  • scripts/extract_form_field_info.py4.2 KB
  • scripts/extract_form_structure.py3.9 KB
  • scripts/fill_fillable_fields.py3.7 KB
  • scripts/fill_pdf_form_with_annotations.py3.2 KB

SKILL.md(원문)

설치하기 전에 에이전트에게 전달되는 지시 내용을 확인할 수 있습니다.

重要: 所有 scripts/ 路径均相对于此技能目录。 运行方式:cd {this_skill_dir} && python scripts/... 或使用 execute_shell_command 的 cwd 参数。

PDF 处理指南

前置要求

  • pypdf:核心 PDF 读写功能
  • pdfplumber:文本和表格提取
  • reportlab:PDF 创建
  • pdftotext (poppler-utils):命令行文本提取
  • pdftoppm (poppler-utils):PDF 转图片
  • qpdf:PDF 操作(合并、拆分、旋转、解密)

概述

本指南涵盖了使用 Python 库和命令行工具进行 PDF 处理的基本操作。有关高级功能、JavaScript 库和详细示例,请参阅 REFERENCE.md。如果需要填写 PDF 表单,请阅读 FORMS.md 并按照其中的说明操作。

快速入门

from pypdf import PdfReader, PdfWriter

# 读取 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

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

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

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

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

import pdfplumber

with pdfplumber.open("document.pdf") as pdf:
    for page in pdf.pages:
        text = page.extract_text()
        print(text)

提取表格

with pdfplumber.open("document.pdf") as pdf:
    for i, page in enumerate(pdf.pages):
        tables = page.extract_tables()
        for j, table in enumerate(tables):
            print(f"Table {j+1} on page {i+1}:")
            for row in table:
                print(row)

高级表格提取

import pandas as pd

with pdfplumber.open("document.pdf") as pdf:
    all_tables = []
    for page in pdf.pages:
        tables = page.extract_tables()
        for table in tables:
            if table:  # 检查表格是否为空
                df = pd.DataFrame(table[1:], columns=table[0])
                all_tables.append(df)

# 合并所有表格
if all_tables:
    combined_df = pd.concat(all_tables, ignore_index=True)
    combined_df.to_excel("extracted_tables.xlsx", index=False)

reportlab - 创建 PDF

基本 PDF 创建

from reportlab.lib.pagesizes import letter
from reportlab.pdfgen import canvas

c = canvas.Canvas("hello.pdf", pagesize=letter)
width, height = letter

# 添加文本
c.drawString(100, height - 100, "Hello World!")
c.drawString(100, height - 120, "This is a PDF created with reportlab")

# 添加线条
c.line(100, height - 140, 400, height - 140)

# 保存
c.save()

创建多页 PDF

from reportlab.lib.pagesizes import letter
from reportlab.platypus import SimpleDocTemplate, Paragraph, Spacer, PageBreak
from reportlab.lib.styles import getSampleStyleSheet

doc = SimpleDocTemplate("report.pdf", pagesize=letter)
styles = getSampleStyleSheet()
story = []

# 添加内容
title = Paragraph("Report Title", styles['Title'])
story.append(title)
story.append(Spacer(1, 12))

body = Paragraph("This is the body of the report. " * 20, styles['Normal'])
story.append(body)
story.append(PageBreak())

# 第 2 页
story.append(Paragraph("Page 2", styles['Heading1']))
story.append(Paragraph("Content for page 2", styles['Normal']))

# 构建 PDF
doc.build(story)

下标和上标

重要:切勿在 ReportLab PDF 中使用 Unicode 下标/上标字符(₀₁₂₃₄₅₆₇₈₉、⁰¹²³⁴⁵⁶⁷⁸⁹)。内置字体不包含这些字形,会导致它们渲染为黑色方块。

请改用 ReportLab 在 Paragraph 对象中的 XML 标记标签:

from reportlab.platypus import Paragraph
from reportlab.lib.styles import getSampleStyleSheet

styles = getSampleStyleSheet()

# 下标:使用 <sub> 标签
chemical = Paragraph("H<sub>2</sub>O", styles['Normal'])

# 上标:使用 <super> 标签
squared = Paragraph("x<super>2</super> + y<super>2</super>", styles['Normal'])

对于使用 canvas 绘制的文本(非 Paragraph 对象),请手动调整字体大小和位置,而不是使用 Unicode 下标/上标。

命令行工具

pdftotext (poppler-utils)

# 提取文本
pdftotext input.pdf output.txt

# 保留布局提取文本
pdftotext -layout input.pdf output.txt

# 提取指定页面
pdftotext -f 1 -l 5 input.pdf output.txt  # 第 1-5 页

qpdf

# 合并 PDF
qpdf --empty --pages file1.pdf file2.pdf -- merged.pdf

# 拆分页面
qpdf input.pdf --pages . 1-5 -- pages1-5.pdf
qpdf input.pdf --pages . 6-10 -- pages6-10.pdf

# 旋转页面
qpdf input.pdf output.pdf --rotate=+90:1  # 将第 1 页旋转 90 度

# 移除密码
qpdf --password=mypassword --decrypt encrypted.pdf decrypted.pdf

pdftk(如果可用)

# 合并
pdftk file1.pdf file2.pdf cat output merged.pdf

# 拆分
pdftk input.pdf burst

# 旋转
pdftk input.pdf rotate 1east output rotated.pdf

常见任务

从扫描版 PDF 提取文本

# 需要安装:pip install pytesseract pdf2image
import pytesseract
from pdf2image import convert_from_path

# 将 PDF 转换为图片
images = convert_from_path('scanned.pdf')

# 对每页进行 OCR
text = ""
for i, image in enumerate(images):
    text += f"Page {i+1}:\n"
    text += pytesseract.image_to_string(image)
    text += "\n\n"

print(text)

添加水印

from pypdf import PdfReader, PdfWriter

# 创建水印(或加载已有水印)
watermark = PdfReader("watermark.pdf").pages[0]

# 应用到所有页面
reader = PdfReader("document.pdf")
writer = PdfWriter()

for page in reader.pages:
    page.merge_page(watermark)
    writer.add_page(page)

with open("watermarked.pdf", "wb") as output:
    writer.write(output)

提取图片

# 使用 pdfimages (poppler-utils)
pdfimages -j input.pdf output_prefix

# 这会将所有图片提取为 output_prefix-000.jpg、output_prefix-001.jpg 等

密码保护

from pypdf import PdfReader, PdfWriter

reader = PdfReader("input.pdf")
writer = PdfWriter()

for page in reader.pages:
    writer.add_page(page)

# 添加密码
writer.encrypt("userpassword", "ownerpassword")

with open("encrypted.pdf", "wb") as output:
    writer.write(output)

快速参考

任务最佳工具命令/代码
合并 PDFpypdfwriter.add_page(page)
拆分 PDFpypdf每页一个文件
提取文本pdfplumberpage.extract_text()
提取表格pdfplumberpage.extract_tables()
创建 PDFreportlabCanvas 或 Platypus
命令行合并qpdfqpdf --empty --pages ...
OCR 扫描版 PDFpytesseract先转换为图片
填写 PDF 表单pdf-lib 或 pypdf(见 FORMS.md)见 FORMS.md

后续步骤

  • 有关 pypdfium2 的高级用法,请参阅 REFERENCE.md
  • 有关 JavaScript 库(pdf-lib),请参阅 REFERENCE.md
  • 如果需要填写 PDF 表单,请按照 FORMS.md 中的说明操作
  • 有关故障排除指南,请参阅 REFERENCE.md

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한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

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browser

무료

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한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

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browser

무료

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한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

  • Search a website and inspect the resulting page
  • Fill forms and select options in a browser
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한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

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한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

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