https://pdf2md.dev/ 2026-06-15 1.0 weekly https://pdf2md.dev/app/ 2026-06-21 0.9 weekly https://pdf2md.dev/for-ai/ 2026-06-20 0.8 monthly https://pdf2md.dev/developers/ 2026-06-20 0.8 monthly https://pdf2md.dev/support/ 2026-06-21 0.6 monthly https://pdf2md.dev/privacy/ 2026-06-22 0.3 monthly https://pdf2md.dev/terms/ 2026-06-22 0.3 monthly https://pdf2md.dev/refund/ 2026-06-22 0.3 monthly