I'm an amateur photographer with very little experience, but today I saw a notice calling for photo submissions for an exhibition in my town and I'd like to send some photos I took. But they have some requirements regarding the file's properties, and I know nothing about it. The requirements for the file are: 300 dpi The final size of printing must be 60x40cm The dpi of all my pics was originally 72. I found a dpi converting website and converted it to 300. Is this it? Now, about size, the pics I'd like to send are all 5184x3456(x16M) I see the ratio is equal for 60x40 and 5184x3456, but I don't understand what does it mean when they say that I have to send it with the "final printing size of 60x40". The pics would have to be smallers or something?