AFAIK, Egyptians, who was obsessed with filling Alexandria library with books prohibited papyrus export, so others, especially persians, who tried to build a library too, had to find alternatives. Animals in any case was used for food, so they turned to leather as a medium for data.

If making perchament is satanic, then making leather shoes too. Really, you are looking into the wrong direction. Usage of diferrent parts of dead animals have nothing to do with satanism. It is just practicism and economy. Satanism is when routine cattle slaughter turns into some specific rithual of killing. Check the Jews, f.e., they was allowed to make and use only cosher perchament. Find out when the food or other animal product could be accounted as kosher. It is not only type of animal that should be kosher. It is also a very complex rithual of killing that animal. If you have tough enough stomach, you could find the process description in details. And without that disgusting rithual, or even if rithual was not executed in full and correctly, anything that made from that killed animal could not be accounted as kosher.