There are more than 40 complete sets of China's calligraphy, each with 200-300 pages. How long does it take to upload all the remakes or scans to the Internet (if the accuracy is high, the website space of tens of thousands of pictures will be large enough to fit). If he is a professional pirate, there may be, but he has spent so much time collecting and will not easily distribute it online for free.
So in my opinion, most of them don't have an electronic version, and it's ok to look at scattered things on the computer. If the precision is high, it will open slowly, and if the precision is low, you can't see the details. It's very convenient to find a complete set of books or turn pages on paper. It turns quickly and looks much more intuitive.