Avoid useless bytes at the end of JPEG file

[Syping]

Is your feature request related to a problem? Please describe.
Not really

Describe the solution you'd like
End the JPEG file at 0xFF 0xD9 so everything after it is skipped which reduces file size and removes useless bytes

Describe alternatives you've considered
None

Additional context
Just some advice

[manuasir]

Thanks very much @Syping! We'll change that ASAP.