A CLI tool for converting PDFs to dark mode while preserving the Table of Contents (TOC).

This tool addresses a niche but persistent user experience pain point: eye strain from bright PDFs in low-light environments. While seemingly minor, such quality-of-life improvements can enhance productivity for developers and researchers who frequently consume technical documentation. The CLI interface targets a technically proficient user base. The market implication is limited for B2B SaaS directly, as it's a utility, not a platform. However, the underlying capability of robust PDF manipulation, especially preserving complex structures like TOCs during transformation, holds potential for integration into document management systems or content delivery platforms where accessibility and user preference customization are critical features.