pdf2md

Convert PDF to Markdown and TXT, especially for obsidian.

• Get content:
  • Convert text pdf.
  • Convert picture pdf by ocr.
    • Higher OCR recognition accuracy.
  • Save pictures and insert to markdown by obsidian way.
• Fix broken sentences. (most but not 100%)
  • Need to optimize based on more samples.
  • AI assisted recognition of sentence breaks.
• Add headings:
  • Convert pdf bookmarks to headings.
  • Use page number as headings for picture pdf.
    • Fetch first sentence for page number headings.
    • Compare the headers, catalog, and page numbers to identify the levels of headings.
• Filename handling:
  • Fix unsupported characters in filename.
  • Replace characters conflicting with obsidian in filename.
• Character encoding problem handling:
  • Normalise the same character but different unicode, which can't read by TTS.
• Batch convert.
• Catalog: Replace catalog to obsidian way. (little significance)