It's Thermaltake's Core W200 user manual from this page: https://www.thermaltake.com/C_00002894.htm?id=C_00002894#productattach https://www.thermaltake.com/C_0

It's Thermaltake's Core W200 user manual from this page: https://www.thermaltake.com/C_00002894.htm?id=C_00002894#productattach https://www.thermaltake.com/C_00002894.htm?id=C_00002894#pro... Also, it seems to DoS Files app preview, which probably uses Books' rendering. Note that it doesn't appear to affect Mobile Safari's ability to render the PDF in the browser, albeit it's really slow on complex CAD drawing pages.