It automatically appends the jpg extension, but, like linux, it doesn't care about the extension, just the file header. On the one image I've uploaded that it's changed the extension of, there's still no visible JPEG artefacts.
EDIT: Accidentally a letter.
EDIT: Accidentally a letter.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
