Batch convert documents between multiple formats using a unified pipeline
npx skills add https://github.com/claude-office-skills/skills --skill batch-convert
This skill enables batch conversion of documents between multiple formats using a unified pipeline. Convert hundreds of files at once with consistent settings, automatic format detection, and parallel processing for maximum efficiency.
Example prompts:
| From | To: DOCX | To: PDF | To: MD | To: HTML | To: PPTX |
|------|----------|---------|--------|----------|----------|
| DOCX | - | ✅ | ✅ | ✅ | - |
| PDF | ✅ | - | ✅ | ✅ | - |
| MD | ✅ | ✅ | - | ✅ | ✅ |
| HTML | ✅ | ✅ | ✅ | - | - |
| XLSX | - | ✅ | ✅ | ✅ | - |
| PPTX | - | ✅ | ✅ | ✅ | - |
from pathlib import Path
from concurrent.futures import ThreadPoolExecutor, as_completed
import subprocess
import os
class DocumentConverter:
"""Unified document conversion pipeline."""
def __init__(self, max_workers=4):
self.max_workers = max_workers
self.converters = {
('md', 'docx'): self._md_to_docx,
('md', 'pdf'): self._md_to_pdf,
('md', 'html'): self._md_to_html,
('md', 'pptx'): self._md_to_pptx,
('docx', 'pdf'): self._docx_to_pdf,
('docx', 'md'): self._docx_to_md,
('pdf', 'docx'): self._pdf_to_docx,
('pdf', 'md'): self._pdf_to_md,
('xlsx', 'pdf'): self._xlsx_to_pdf,
('xlsx', 'md'): self._xlsx_to_md,
('pptx', 'pdf'): self._pptx_to_pdf,
('pptx', 'md'): self._pptx_to_md,
('html', 'md'): self._html_to_md,
('html', 'pdf'): self._html_to_pdf,
}
def convert(self, input_path, output_format, output_dir=None):
"""Convert single file to target format."""
input_path = Path(input_path)
input_format = input_path.suffix[1:].lower()
if output_dir:
output_path = Path(output_dir) / f"{input_path.stem}.{output_format}"
else:
output_path = input_path.with_suffix(f".{output_format}")
converter_key = (input_format, output_format)
if converter_key not in self.converters:
raise ValueError(f"Conversion not supported: {input_format} -> {output_format}")
converter = self.converters[converter_key]
return converter(input_path, output_path)
def batch_convert(self, input_dir, output_format, output_dir=None,
file_pattern="*", recursive=False):
"""Batch convert all matching files."""
input_path = Path(input_dir)
output_path = Path(output_dir) if output_dir else input_path / "converted"
output_path.mkdir(exist_ok=True)
# Find files
if recursive:
files = list(input_path.rglob(file_pattern))
else:
files = list(input_path.glob(file_pattern))
# Filter to supported formats
supported_ext = ['.md', '.docx', '.pdf', '.xlsx', '.pptx', '.html']
files = [f for f in files if f.suffix.lower() in supported_ext]
results = []
with ThreadPoolExecutor(max_workers=self.max_workers) as executor:
future_to_file = {
executor.submit(self.convert, f, output_format, output_path): f
for f in files
}
for future in as_completed(future_to_file):
file = future_to_file[future]
try:
result = future.result()
results.append({'file': str(file), 'status': 'success', 'output': str(result)})
except Exception as e:
results.append({'file': str(file), 'status': 'error', 'error': str(e)})
return results
# Markdown conversions (using Pandoc)
def _md_to_docx(self, input_path, output_path):
subprocess.run(['pandoc', str(input_path), '-o', str(output_path)], check=True)
return output_path
def _md_to_pdf(self, input_path, output_path):
subprocess.run(['pandoc', str(input_path), '-o', str(output_path)], check=True)
return output_path
def _md_to_html(self, input_path, output_path):
subprocess.run(['pandoc', str(input_path), '-s', '-o', str(output_path)], check=True)
return output_path
def _md_to_pptx(self, input_path, output_path):
subprocess.run(['marp', str(input_path), '-o', str(output_path)], check=True)
return output_path
# Office to Markdown (using markitdown)
def _docx_to_md(self, input_path, output_path):
from markitdown import MarkItDown
md = MarkItDown()
result = md.convert(str(input_path))
with open(output_path, 'w') as f:
f.write(result.text_content)
return output_path
def _xlsx_to_md(self, input_path, output_path):
from markitdown import MarkItDown
md = MarkItDown()
result = md.convert(str(input_path))
with open(output_path, 'w') as f:
f.write(result.text_content)
return output_path
def _pptx_to_md(self, input_path, output_path):
from markitdown import MarkItDown
md = MarkItDown()
result = md.convert(str(input_path))
with open(output_path, 'w') as f:
f.write(result.text_content)
return output_path
# PDF conversions
def _pdf_to_docx(self, input_path, output_path):
from pdf2docx import Converter
cv = Converter(str(input_path))
cv.convert(str(output_path))
cv.close()
return output_path
def _pdf_to_md(self, input_path, output_path):
from markitdown import MarkItDown
md = MarkItDown()
result = md.convert(str(input_path))
with open(output_path, 'w') as f:
f.write(result.text_content)
return output_path
# Office to PDF (using LibreOffice)
def _docx_to_pdf(self, input_path, output_path):
subprocess.run([
'soffice', '--headless', '--convert-to', 'pdf',
'--outdir', str(output_path.parent), str(input_path)
], check=True)
return output_path
def _xlsx_to_pdf(self, input_path, output_path):
subprocess.run([
'soffice', '--headless', '--convert-to', 'pdf',
'--outdir', str(output_path.parent), str(input_path)
], check=True)
return output_path
def _pptx_to_pdf(self, input_path, output_path):
subprocess.run([
'soffice', '--headless', '--convert-to', 'pdf',
'--outdir', str(output_path.parent), str(input_path)
], check=True)
return output_path
from tqdm import tqdm
def batch_convert_with_progress(converter, input_dir, output_format, output_dir=None):
"""Batch convert with progress bar."""
input_path = Path(input_dir)
files = list(input_path.glob('*'))
results = []
for file in tqdm(files, desc=f"Converting to {output_format}"):
try:
result = converter.convert(file, output_format, output_dir)
results.append({'file': str(file), 'status': 'success'})
except Exception as e:
results.append({'file': str(file), 'status': 'error', 'error': str(e)})
return results
def detect_and_convert(file_path, target_format):
"""Automatically detect format and convert."""
import mimetypes
mime_type, _ = mimetypes.guess_type(str(file_path))
format_map = {
'application/pdf': 'pdf',
'application/vnd.openxmlformats-officedocument.wordprocessingml.document': 'docx',
'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet': 'xlsx',
'application/vnd.openxmlformats-officedocument.presentationml.presentation': 'pptx',
'text/markdown': 'md',
'text/html': 'html',
}
source_format = format_map.get(mime_type, Path(file_path).suffix[1:])
converter = DocumentConverter()
return converter.convert(file_path, target_format)
def convert_to_multiple_formats(input_file, output_formats, output_dir):
"""Convert one file to multiple formats."""
converter = DocumentConverter()
results = {}
for fmt in output_formats:
try:
output = converter.convert(input_file, fmt, output_dir)
results[fmt] = {'status': 'success', 'path': str(output)}
except Exception as e:
results[fmt] = {'status': 'error', 'error': str(e)}
return results
# Convert README to multiple formats
results = convert_to_multiple_formats(
'README.md',
['docx', 'pdf', 'html'],
'./exports'
)
from pathlib import Path
import json
def export_documentation(docs_dir, export_dir):
"""Export all documentation to multiple formats."""
converter = DocumentConverter(max_workers=8)
docs_path = Path(docs_dir)
export_path = Path(export_dir)
# Create format directories
for fmt in ['pdf', 'docx', 'html']:
(export_path / fmt).mkdir(parents=True, exist_ok=True)
all_results = {}
# Find all markdown files
md_files = list(docs_path.rglob('*.md'))
for md_file in md_files:
file_results = {}
for fmt in ['pdf', 'docx', 'html']:
output_dir = export_path / fmt
try:
output = converter.convert(md_file, fmt, output_dir)
file_results[fmt] = 'success'
except Exception as e:
file_results[fmt] = f'error: {e}'
all_results[str(md_file)] = file_results
print(f"Processed: {md_file.name}")
# Save report
with open(export_path / 'export_report.json', 'w') as f:
json.dump(all_results, f, indent=2)
return all_results
results = export_documentation('./docs', './exports')
def migrate_legacy_docs(source_dir, target_dir):
"""Migrate legacy documents to modern formats."""
converter = DocumentConverter(max_workers=4)
# Migration rules
migrations = [
('*.doc', 'docx'), # Old Word to new
('*.xls', 'xlsx'), # Old Excel to new
('*.ppt', 'pptx'), # Old PowerPoint to new
('*.rtf', 'docx'), # RTF to Word
]
source_path = Path(source_dir)
target_path = Path(target_dir)
target_path.mkdir(exist_ok=True)
total_migrated = 0
errors = []
for pattern, target_format in migrations:
files = list(source_path.glob(pattern))
for file in files:
try:
# Use LibreOffice for legacy formats
subprocess.run([
'soffice', '--headless',
'--convert-to', target_format,
'--outdir', str(target_path),
str(file)
], check=True)
total_migrated += 1
print(f"Migrated: {file.name}")
except Exception as e:
errors.append({'file': str(file), 'error': str(e)})
print(f"\nMigration complete: {total_migrated} files")
print(f"Errors: {len(errors)}")
return {'migrated': total_migrated, 'errors': errors}
def generate_reports_pipeline(data_files, template_dir, output_dir):
"""Generate reports from data files using templates."""
from datetime import datetime
converter = DocumentConverter()
output_path = Path(output_dir)
output_path.mkdir(exist_ok=True)
timestamp = datetime.now().strftime('%Y%m%d_%H%M%S')
reports = []
for data_file in data_files:
# Load data
data_path = Path(data_file)
# Generate markdown report
md_content = f"""---
title: Report - {data_path.stem}
date: {datetime.now().strftime('%Y-%m-%d')}
---
# {data_path.stem} Report
Generated: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}
## Data Summary
"""
# Add data content (simplified)
if data_path.suffix == '.xlsx':
from markitdown import MarkItDown
md = MarkItDown()
result = md.convert(str(data_path))
md_content += result.text_content
# Save markdown
md_file = output_path / f"{data_path.stem}_{timestamp}.md"
with open(md_file, 'w') as f:
f.write(md_content)
# Convert to PDF and DOCX
for fmt in ['pdf', 'docx']:
try:
output = converter.convert(md_file, fmt, output_path)
reports.append({'source': str(data_file), 'output': str(output), 'format': fmt})
except Exception as e:
print(f"Error converting {data_file} to {fmt}: {e}")
return reports
# Core dependencies
pip install pdf2docx markitdown python-docx openpyxl
# Pandoc (for MD conversions)
brew install pandoc # macOS
apt install pandoc # Ubuntu
# Marp (for PPTX)
npm install -g @marp-team/marp-cli
# LibreOffice (for Office formats)
brew install libreoffice # macOS
apt install libreoffice # Ubuntu
Comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting preservation, and text extraction. When Claude needs to work with professional documents (.docx files) for: (1) Creating new documents, (2) Modifying or editing content, (3) Working with tracked changes, (4) Adding comments, or any other document tasks
Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When Claude needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale.
Presentation creation, editing, and analysis. When Claude needs to work with presentations (.pptx files) for: (1) Creating new presentations, (2) Modifying or editing content, (3) Working with layouts, (4) Adding comments or speaker notes, or any other presentation tasks
Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.
Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart, rotating pages, adding watermarks, creating new PDFs, filling PDF forms, encrypting/decrypting 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.
Use this skill whenever the user wants to create, read, edit, or manipulate Word documents (.docx files). Triggers include: any mention of 'Word doc', 'word document', '.docx', or requests to produce professional documents with formatting like tables of contents, headings, page numbers, or letterheads. Also use when extracting or reorganizing content from .docx files, inserting or replacing images in documents, performing find-and-replace in Word files, working with tracked changes or comments, or converting content into a polished Word document. If the user asks for a 'report', 'memo', 'letter', 'template', or similar deliverable as a Word or .docx file, use this skill. Do NOT use for PDFs, spreadsheets, Google Docs, or general coding tasks unrelated to document generation.
Use this skill any time a .pptx file is involved in any way — as input, output, or both. This includes: creating slide decks, pitch decks, or presentations; reading, parsing, or extracting text from any .pptx file (even if the extracted content will be used elsewhere, like in an email or summary); editing, modifying, or updating existing presentations; combining or splitting slide files; working with templates, layouts, speaker notes, or comments. Trigger whenever the user mentions \"deck,\" \"slides,\" \"presentation,\" or references a .pptx filename, regardless of what they plan to do with the content afterward. If a .pptx file needs to be opened, created, or touched, use this skill.
Create and edit Obsidian Flavored Markdown with wikilinks, embeds, callouts, properties, and other Obsidian-specific syntax. Use when working with .md files in Obsidian, or when the user mentions wikilinks, callouts, frontmatter, tags, embeds, or Obsidian notes.
Take claude-office-skills/batch-convert from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.
The instructions reference pip, npm, brew.
Without those the skill loads but fails at the first command.