Facebook photos

[David N]

Hi

Just need a bit of advise from those who put photos online, mainly Facebook now a lot a spotter groups have gone that way.

I recently put a photo on the Boeing 747 Fan Club (CMAE) page and soon received many likes.

It wasn't until I received a comment saying
"Great shot for full screen view" did I realise it was uploaded at 300 dpi, I was told it should have been at 72 dpi which would allow people to enjoy it but not be able to take it and print.

Should I consider a watermark?
Any advise appreciated.

Thanks
David