pdf-processor

PDF Processor Skill

This skill creates, edits, and analyzes PDF files.

Overview

It assists with reading PDFs, extracting text, processing forms, and creating new PDFs.

Main Features

• Text Extraction: Extract text and tables from PDFs
• PDF Generation: Create PDFs from HTML or Markdown
• Form Processing: Read and write PDF forms
• Split/Merge: Manipulate multiple PDFs
• Add Watermarks: Security Mark
• Password Protection: Create encrypted PDFs
• Metadata Editing: Title, author, etc.

Usage

Text Extraction

# Python + PyPDF2
import PyPDF2

with open('document.pdf', 'rb') as file:
    reader = PyPDF2.PdfReader(file)
    text = ''
    for page in reader.pages:
        text += page.extract_text()
    print(text)

PDF Generation (from HTML)

# Python + pdfkit/weasyprint
import pdfkit

pdfkit.from_file('document.html', 'output.pdf')

# または
from weasyprint import HTML
HTML('document.html').write_pdf('output.pdf')

PDF Merging

from PyPDF2 import PdfMerger

merger = PdfMerger()
merger.append('file1.pdf')
merger.append('file2.pdf')
merger.write('combined.pdf')
merger.close()

Form Processing

from PyPDF2 import PdfReader, PdfWriter

reader = PdfReader('form.pdf')
writer = PdfWriter()

# フォームフィールドに値を設定
writer.add_page(reader.pages[0])
writer.update_page_form_field_values(
    writer.pages[0],
    {'name': 'John Doe', 'email': 'john@example.com'}
)

with open('filled_form.pdf', 'wb') as output:
    writer.write(output)

JavaScript/Node.js

// pdf-lib
const { PDFDocument } = require('pdf-lib');
const fs = require('fs');

async function createPdf() {
  const pdfDoc = await PDFDocument.create();
  const page = pdfDoc.addPage([600, 400]);

  page.drawText('Hello World!', {
    x: 50,
    y: 350,
    size: 30
  });

  const pdfBytes = await pdfDoc.save();
  fs.writeFileSync('output.pdf', pdfBytes);
}

Library

Python

• PyPDF2: PDF reading and writing
• pdfplumber: Table extraction
• ReportLab: PDF generation
• WeasyPrint: HTML→PDF
• pdfkit: wkhtmltopdf wrapper

JavaScript/Node.js

• pdf-lib: PDF creation and editing
• pdfjs-dist: PDF analysis
• puppeteer: HTML→PDF
• jsPDF: PDF generation in the browser

Go

• gofpdf: PDF generation
• unidoc: Commercial library

Version Information

• Skill Version: 1.0.0
• Last updated: 2025-01-22