The truth about photo resolution: RESOLUTION is the number of pixels per sq. in. Resolution isn’t sharpness. It’s pixel density. It is NOT the dimensions, i.e. 1200 X 900 (I don’t care what you’ve read elsewhere) It is NOT total pixels, i.e. 50mp. HIGH RESOLUTION is 300 ppi. (pixels per inch) All my clients get JPEG images @300ppi. so they can make large prints if desired. The combination of dimensions and ppi will determine how much you can enlarge an image and retain sharpness or avoid “pixelation”. If you’ve read this far you’ll be interested in my further discussion of resolution later today.
This photo is a JPEG so it has a resolution.