Gita Press is the gold standard for Sanskrit-Hindi combined texts. They publish the Skanda Purana across multiple volumes.
This is the largest free repository. Use specific search strings: skanda+purana+pdf+in+sanskrit+and+hindi
Pro Tip: When searching on Archive.org, filter by "Texts" and "Year" (older scans from 1990-2010 are often Gita Press reprints). Gita Press is the gold standard for Sanskrit-Hindi
If you cannot download the entire Purana, start with these most popular sections: Pro Tip: When searching on Archive
| Khanda (Section) | Subject | Best PDF Source | | :--- | :--- | :--- | | Maheshwara Khanda | Satyanarayan Katha, Kedarnath | Gita Press (Archive.org) | | Kashi Khanda | Glory of Varanasi (Banaras) | Venkateshwar Press Scan | | Avantya Khanda | Glory of Ujjain & Mahakaleshwar | Sanskrit/Hindi combined edition | | Prabhasa Khanda | Dwarka & Somnath | Chowkhamba Sanskrit Series |