pdf-reader

# PDF Reader Tools for reading, extracting, and manipulating PDF files. ## Extract text from PDF ```bash # Using pdftotext (poppler-utils) if available pdftotext input.pdf output.txt # Using python with PyPDF2 python3 -c " import PyPDF2 with open('input.pdf', 'rb') as f: reader = PyPDF2.PdfReader(f) for i, page in enumerate(reader.pages): text = page.extract_text() print(f'--- Page {i+1} ---') print(text) " ``` ## Extract tables from PDF ```bash python3 -c " import sys try: import tabula dfs = tabula.read_pdf('input.pdf', pages='all') for i, df in enumerate(dfs): print(f'--- Table {i+1} ---') print(df.to_csv(index=False)) except ImportError: print('Install tabula-py: pip install tabula-py') sys.exit(1) " ``` ## Get PDF metadata ```bash python3 -c " import PyPDF2, json with open('input.pdf', 'rb') as f: reader = PyPDF2.PdfReader(f) meta = reader.metadata info = { 'title': meta.title if meta else None, 'author': meta.author if meta else None, 'subject': meta.subject if meta else None, 'creator': meta.creator if meta else None, 'pages': len(reader.pages), } print(json.dumps(info, indent=2, default=str)) " ``` ## Convert PDF to text ```bash python3 -c " import PyPDF2 with open('input.pdf', 'rb') as f: reader = PyPDF2.PdfReader(f) text = [] for page in reader.pages: text.append(page.extract_text() or '') with open('output.txt', 'w') as out: out.write('\n\n'.join(text)) print('Converted to output.txt') " ``` ## Merge PDFs ```bash python3 -c " import PyPDF2, sys merger = PyPDF2.PdfMerger() files = sys.argv[1:] for pdf in files: merger.append(pdf) merger.write('merged.pdf') merger.close() print(f'Merged {len(files)} files into merged.pdf') " file1.pdf file2.pdf file3.pdf ``` ## Split PDF pages ```bash python3 -c " import PyPDF2 with open('input.pdf', 'rb') as f: reader = PyPDF2.PdfReader(f) for i, page in enumerate(reader.pages): writer = PyPDF2.PdfWriter() writer.add_page(page) out_path = f'page_{i+1:03d}.pdf' with open(out_path, 'wb') as out: writer.write(out) print(f'Wrote {out_path}') print(f'Split into {len(reader.pages)} files') " ``` ## Extract images from PDF ```bash python3 -c " import PyPDF2, os os.makedirs('extracted_images', exist_ok=True) with open('input.pdf', 'rb') as f: reader = PyPDF2.PdfReader(f) img_count = 0 for page_num, page in enumerate(reader.pages): for img_key in page.images: img_count += 1 img = page.images[img_key] ext = os.path.splitext(img.name)[1] or '.png' out_path = f'extracted_images/page{page_num+1}_img{img_count}{ext}' with open(out_path, 'wb') as out: out.write(img.data) print(f'Extracted {out_path}') print(f'Total images extracted: {img_count}') " ```