I am an artist and I have a number of photos of my paintings or other subjects that I'd like to be able to make prints of and sell. Obviously what I print has to be the best quality print I can get for the photo that has been taken. I need help to understand the relationship between, the resolution, pixels and the largest size print I can make without losing any quality. I do not want a blurry or fuzzy print. I want to be able to see the detail that I can clearly see on screen to be clear on paper. Is this possible?
So, as an example I have a photo (jpeg)that according to the photo properties is 72 ppi and 2448 x 3264 pixels. From what I have read so far you need a minimum of 125ppi , but preferably 300ppi to make a print. Can I increase this photo which is currently 72ppi to 300ppi and if so what would be the largest size print I could get that is of good quality? How do I do this? As I mentioned earlier I am struggling to understand the difference and relationship between PPI and number of pixels and what this means when it comes to enlarging or printing photos.
I'd appreciate any advice or knowledge you have to help me understand this.