If you are looking for a digital version of this sacred text, the following reliable online repositories provide free or accessible formats:
Downloading the PDF is just the first step. To gain the Anugraham (grace) of Lord Shiva, follow this ritual: sivapuranam malayalam pdf link
To find the PDF yourself, try these exact search strings: If you are looking for a digital version
A digitized version of the Sivapuranam from the Gundert Collection (1850) is available for free browsing and download. sivapuranam malayalam pdf link