import logging
import os
from pathlib import Path
import time
try:
import markdown
import win32com.client
import pythoncom
except ImportError:
pass
def convert_md_to_pdf_via_word(md_abs_path: Path, pdf_abs_path: Path) -> str:
"""
使用 Microsoft Word COM 接口将 Markdown 转换为 PDF。
依赖：pywin32, markdown
"""
temp_html_path = md_abs_path.with_suffix('.temp.html')
word_app = None
try:
# 1. MD 转 HTML
with open(md_abs_path, 'r', encoding='utf-8') as f:
md_content = f.read()
html_body = markdown.markdown(md_content, extensions=['tables', 'fenced_code'])
html_content = f"""
{html_body}
"""
with open(temp_html_path, 'w', encoding='utf-8') as f:
f.write(html_content)
# 2. 调用 Word COM
pythoncom.CoInitialize()
word_app = win32com.client.Dispatch('Word.Application')
word_app.Visible = False
word_app.DisplayAlerts = False
doc = word_app.Documents.Open(str(temp_html_path.resolve()))
doc.SaveAs(str(pdf_abs_path.resolve()), FileFormat=17) # wdFormatPDF = 17
doc.Close(SaveChanges=0)
if pdf_abs_path.exists():
return f"成功转换: {pdf_abs_path} (Word引擎)"
else:
return f"转换完成但未生成文件: {pdf_abs_path}"
except ImportError:
return "缺少依赖库，请安装: pip install pywin32 markdown"
except Exception as e:
logging.error(f"Word转换PDF失败: {e}", exc_info=True)
return f"转换失败: {str(e)}"
finally:
# 3. 资源清理
if word_app:
try:
word_app.Quit()
except:
pass
if temp_html_path.exists():
try:
temp_html_path.unlink()
except:
pass
try:
pythoncom.CoUninitialize()
except:
pass