Hello, I hope you can help me. I am a rookie. However, I am working on my son's elementary school yearbook. I need to have the pictures be 300 dpi resolution. Is there a way to change the pictures that I am getting from volunteer photographers so they have the required dpi resolution? The cheat sheet only gives an example of how to do this in Adobe Photoshop but I do not have that. I have what came with my Canon Elph and maybe my computer? Which is Corel and Zoom Image Browser (Canon).
Is there any way to do this without purchasing software? I would like to be able to right click on the image and call it done but I guess there is no 'easy button' for this?
Thanks for your advice & help in advance!!