If you want a complete, error-free, and searchable PDF, the best approach is to buy it. Many Odia bookstores now sell DRM-free PDFs:
The text is typically divided into several Samhitas (sections), such as the (focused on Shiva worship and the Panchakshari mantra) and the Rudra Samhita (covering the creation of the universe and Shiva’s divine acts). For many readers, the Odia edition—particularly those from Gita Press, Gorakhpur —is praised for its clarity and preservation of the original "bhakti" (devotional) essence. 2. Accessibility & Language shiv puran in odia pdf link