[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill-203fd9f5-1714-4cdb-a23f-4af82b8e4dc2":3,"$fy3FCMySDSYPhkYUavYHkkUNCPycpzs9LkavKA64yzFA":43},{"id":4,"title":5,"description":6,"categoryId":7,"moduleId":8,"tags":9,"prompt":10,"icon":11,"source":12,"sourceUrl":13,"authorId":14,"authorName":15,"isPublic":16,"stars":17,"runs":18,"createdAt":19,"updatedAt":19,"module":20,"category":27,"packages":34},"203fd9f5-1714-4cdb-a23f-4af82b8e4dc2","pdf","使用此技能 whenever 用户想要对PDF文件进行任何操作。这包括从PDF中读取或提取文本\u002F表格、合并或合并多个PDF为一个、拆分PDF、旋转页面、添加水印、创建新的PDF、填写PDF表格、加密\u002F解密PDF、提取图片、以及将扫描的PDF进行OCR以使其可搜索。如果用户提到.pdf文件或要求生成一个，请使用此技能。","cat_prod_document","mod_productivity","anthropics,productivity","---\nname: pdf\ndescription: Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text\u002Ftables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart, rotating pages, adding watermarks, creating new PDFs, filling PDF forms, encrypting\u002Fdecrypting PDFs, extracting images, and OCR on scanned PDFs to make them searchable. If the user mentions a .pdf file or asks to produce one, use this skill.\nlicense: Proprietary. LICENSE.txt has complete terms\n---\n\n# PDF Processing Guide\n\n## Overview\n\nThis guide covers essential PDF processing operations using Python libraries and command-line tools. For advanced features, JavaScript libraries, and detailed examples, see REFERENCE.md. If you need to fill out a PDF form, read FORMS.md and follow its instructions.\n\n## Quick Start\n\n```python\nfrom pypdf import PdfReader, PdfWriter\n\n# Read a PDF\nreader = PdfReader(\"document.pdf\")\nprint(f\"Pages: {len(reader.pages)}\")\n\n# Extract text\ntext = \"\"\nfor page in reader.pages:\n    text += page.extract_text()\n```\n\n## Python Libraries\n\n### pypdf - Basic Operations\n\n#### Merge PDFs\n```python\nfrom pypdf import PdfWriter, PdfReader\n\nwriter = PdfWriter()\nfor pdf_file in [\"doc1.pdf\", \"doc2.pdf\", \"doc3.pdf\"]:\n    reader = PdfReader(pdf_file)\n    for page in reader.pages:\n        writer.add_page(page)\n\nwith open(\"merged.pdf\", \"wb\") as output:\n    writer.write(output)\n```\n\n#### Split PDF\n```python\nreader = PdfReader(\"input.pdf\")\nfor i, page in enumerate(reader.pages):\n    writer = PdfWriter()\n    writer.add_page(page)\n    with open(f\"page_{i+1}.pdf\", \"wb\") as output:\n        writer.write(output)\n```\n\n#### Extract Metadata\n```python\nreader = PdfReader(\"document.pdf\")\nmeta = reader.metadata\nprint(f\"Title: {meta.title}\")\nprint(f\"Author: {meta.author}\")\nprint(f\"Subject: {meta.subject}\")\nprint(f\"Creator: {meta.creator}\")\n```\n\n#### Rotate Pages\n```python\nreader = PdfReader(\"input.pdf\")\nwriter = PdfWriter()\n\npage = reader.pages[0]\npage.rotate(90)  # Rotate 90 degrees clockwise\nwriter.add_page(page)\n\nwith open(\"rotated.pdf\", \"wb\") as output:\n    writer.write(output)\n```\n\n### pdfplumber - Text and Table Extraction\n\n#### Extract Text with Layout\n```python\nimport pdfplumber\n\nwith pdfplumber.open(\"document.pdf\") as pdf:\n    for page in pdf.pages:\n        text = page.extract_text()\n        print(text)\n```\n\n#### Extract Tables\n```python\nwith pdfplumber.open(\"document.pdf\") as pdf:\n    for i, page in enumerate(pdf.pages):\n        tables = page.extract_tables()\n        for j, table in enumerate(tables):\n            print(f\"Table {j+1} on page {i+1}:\")\n            for row in table:\n                print(row)\n```\n\n#### Advanced Table Extraction\n```python\nimport pandas as pd\n\nwith pdfplumber.open(\"document.pdf\") as pdf:\n    all_tables = []\n    for page in pdf.pages:\n        tables = page.extract_tables()\n        for table in tables:\n            if table:  # Check if table is not empty\n                df = pd.DataFrame(table[1:], columns=table[0])\n                all_tables.append(df)\n\n# Combine all tables\nif all_tables:\n    combined_df = pd.concat(all_tables, ignore_index=True)\n    combined_df.to_excel(\"extracted_tables.xlsx\", index=False)\n```\n\n### reportlab - Create PDFs\n\n#### Basic PDF Creation\n```python\nfrom reportlab.lib.pagesizes import letter\nfrom reportlab.pdfgen import canvas\n\nc = canvas.Canvas(\"hello.pdf\", pagesize=letter)\nwidth, height = letter\n\n# Add text\nc.drawString(100, height - 100, \"Hello World!\")\nc.drawString(100, height - 120, \"This is a PDF created with reportlab\")\n\n# Add a line\nc.line(100, height - 140, 400, height - 140)\n\n# Save\nc.save()\n```\n\n#### Create PDF with Multiple Pages\n```python\nfrom reportlab.lib.pagesizes import letter\nfrom reportlab.platypus import SimpleDocTemplate, Paragraph, Spacer, PageBreak\nfrom reportlab.lib.styles import getSampleStyleSheet\n\ndoc = SimpleDocTemplate(\"report.pdf\", pagesize=letter)\nstyles = getSampleStyleSheet()\nstory = []\n\n# Add content\ntitle = Paragraph(\"Report Title\", styles['Title'])\nstory.append(title)\nstory.append(Spacer(1, 12))\n\nbody = Paragraph(\"This is the body of the report. \" * 20, styles['Normal'])\nstory.append(body)\nstory.append(PageBreak())\n\n# Page 2\nstory.append(Paragraph(\"Page 2\", styles['Heading1']))\nstory.append(Paragraph(\"Content for page 2\", styles['Normal']))\n\n# Build PDF\ndoc.build(story)\n```\n\n#### Subscripts and Superscripts\n\n**IMPORTANT**: Never use Unicode subscript\u002Fsuperscript characters (₀₁₂₃₄₅₆₇₈₉, ⁰¹²³⁴⁵⁶⁷⁸⁹) in ReportLab PDFs. The built-in fonts do not include these glyphs, causing them to render as solid black boxes.\n\nInstead, use ReportLab's XML markup tags in Paragraph objects:\n```python\nfrom reportlab.platypus import Paragraph\nfrom reportlab.lib.styles import getSampleStyleSheet\n\nstyles = getSampleStyleSheet()\n\n# Subscripts: use \u003Csub> tag\nchemical = Paragraph(\"H\u003Csub>2\u003C\u002Fsub>O\", styles['Normal'])\n\n# Superscripts: use \u003Csuper> tag\nsquared = Paragraph(\"x\u003Csuper>2\u003C\u002Fsuper> + y\u003Csuper>2\u003C\u002Fsuper>\", styles['Normal'])\n```\n\nFor canvas-drawn text (not Paragraph objects), manually adjust font the size and position rather than using Unicode subscripts\u002Fsuperscripts.\n\n## Command-Line Tools\n\n### pdftotext (poppler-utils)\n```bash\n# Extract text\npdftotext input.pdf output.txt\n\n# Extract text preserving layout\npdftotext -layout input.pdf output.txt\n\n# Extract specific pages\npdftotext -f 1 -l 5 input.pdf output.txt  # Pages 1-5\n```\n\n### qpdf\n```bash\n# Merge PDFs\nqpdf --empty --pages file1.pdf file2.pdf -- merged.pdf\n\n# Split pages\nqpdf input.pdf --pages . 1-5 -- pages1-5.pdf\nqpdf input.pdf --pages . 6-10 -- pages6-10.pdf\n\n# Rotate pages\nqpdf input.pdf output.pdf --rotate=+90:1  # Rotate page 1 by 90 degrees\n\n# Remove password\nqpdf --password=mypassword --decrypt encrypted.pdf decrypted.pdf\n```\n\n### pdftk (if available)\n```bash\n# Merge\npdftk file1.pdf file2.pdf cat output merged.pdf\n\n# Split\npdftk input.pdf burst\n\n# Rotate\npdftk input.pdf rotate 1east output rotated.pdf\n```\n\n## Common Tasks\n\n### Extract Text from Scanned PDFs\n```python\n# Requires: pip install pytesseract pdf2image\nimport pytesseract\nfrom pdf2image import convert_from_path\n\n# Convert PDF to images\nimages = convert_from_path('scanned.pdf')\n\n# OCR each page\ntext = \"\"\nfor i, image in enumerate(images):\n    text += f\"Page {i+1}:\\n\"\n    text += pytesseract.image_to_string(image)\n    text += \"\\n\\n\"\n\nprint(text)\n```\n\n### Add Watermark\n```python\nfrom pypdf import PdfReader, PdfWriter\n\n# Create watermark (or load existing)\nwatermark = PdfReader(\"watermark.pdf\").pages[0]\n\n# Apply to all pages\nreader = PdfReader(\"document.pdf\")\nwriter = PdfWriter()\n\nfor page in reader.pages:\n    page.merge_page(watermark)\n    writer.add_page(page)\n\nwith open(\"watermarked.pdf\", \"wb\") as output:\n    writer.write(output)\n```\n\n### Extract Images\n```bash\n# Using pdfimages (poppler-utils)\npdfimages -j input.pdf output_prefix\n\n# This extracts all images as output_prefix-000.jpg, output_prefix-001.jpg, etc.\n```\n\n### Password Protection\n```python\nfrom pypdf import PdfReader, PdfWriter\n\nreader = PdfReader(\"input.pdf\")\nwriter = PdfWriter()\n\nfor page in reader.pages:\n    writer.add_page(page)\n\n# Add password\nwriter.encrypt(\"userpassword\", \"ownerpassword\")\n\nwith open(\"encrypted.pdf\", \"wb\") as output:\n    writer.write(output)\n```\n\n## Quick Reference\n\n| Task | Best Tool | Command\u002FCode |\n|------|-----------|--------------|\n| Merge PDFs | pypdf | `writer.add_page(page)` |\n| Split PDFs | pypdf | One page per file |\n| Extract text | pdfplumber | `page.extract_text()` |\n| Extract tables | pdfplumber | `page.extract_tables()` |\n| Create PDFs | reportlab | Canvas or Platypus |\n| Command line merge | qpdf | `qpdf --empty --pages ...` |\n| OCR scanned PDFs | pytesseract | Convert to image first |\n| Fill PDF forms | pdf-lib or pypdf (see FORMS.md) | See FORMS.md |\n\n## Next Steps\n\n- For advanced pypdfium2 usage, see REFERENCE.md\n- For JavaScript libraries (pdf-lib), see REFERENCE.md\n- If you need to fill out a PDF form, follow the instructions in FORMS.md\n- For troubleshooting guides, see REFERENCE.md\n","","imported","https:\u002F\u002Fgithub.com\u002Fanthropics\u002Fskills","user_system_seed","SkillOPIC",true,216,501,"2026-05-16 12:56:47",{"id":8,"name":21,"slug":22,"icon":23,"description":24,"sort":25,"createdAt":26},"效率工具","productivity","mdi-lightning-bolt-outline","文档处理、数据分析、自动化工作流",4,"2026-05-16 12:53:40",{"id":7,"name":28,"slug":29,"icon":30,"description":31,"moduleId":8,"sort":32,"skillCount":33,"createdAt":26},"文档处理","document","mdi-file-document-outline","PDF\u002FWord\u002FExcel\u002FPPT 处理",1,23,[35],{"id":36,"skillId":4,"version":37,"fileName":38,"fileSize":39,"filePath":40,"fileHash":41,"manifest":42,"createdAt":19},"0579e3da-cf47-45ed-96b1-8d6ef002692d","1.0.0","pdf.zip",21468,"uploads\u002Fskills\u002F203fd9f5-1714-4cdb-a23f-4af82b8e4dc2\u002Fpdf.zip","e2bcd3592fa9a85d6649629b2072637ccc5174ad4c4758690c838679be9c6fdb","[{\"path\":\"LICENSE.txt\",\"isDirectory\":false,\"size\":1467},{\"path\":\"SKILL.md\",\"isDirectory\":false,\"size\":8072},{\"path\":\"forms.md\",\"isDirectory\":false,\"size\":11854},{\"path\":\"reference.md\",\"isDirectory\":false,\"size\":16692},{\"path\":\"scripts\u002Fcheck_bounding_boxes.py\",\"isDirectory\":false,\"size\":2774},{\"path\":\"scripts\u002Fcheck_fillable_fields.py\",\"isDirectory\":false,\"size\":268},{\"path\":\"scripts\u002Fconvert_pdf_to_images.py\",\"isDirectory\":false,\"size\":1008},{\"path\":\"scripts\u002Fcreate_validation_image.py\",\"isDirectory\":false,\"size\":1258},{\"path\":\"scripts\u002Fextract_form_field_info.py\",\"isDirectory\":false,\"size\":4300},{\"path\":\"scripts\u002Fextract_form_structure.py\",\"isDirectory\":false,\"size\":3945},{\"path\":\"scripts\u002Ffill_fillable_fields.py\",\"isDirectory\":false,\"size\":3819},{\"path\":\"scripts\u002Ffill_pdf_form_with_annotations.py\",\"isDirectory\":false,\"size\":3235}]",{"code":44,"message":45,"data":46},200,"success",{"items":47,"stats":48,"page":51},[],{"averageRating":49,"totalRatings":49,"ratingCounts":50},0,[49,49,49,49,49],{"limit":52,"offset":49,"hasMore":53,"nextOffset":52,"ratedOnly":16},15,false]