This question is generic. I am not a photographer or graphic artist, or expert with Photoshop. I am a simply a programmer of a website.
I have a generic gallery of images that I have to put in the future site:
My client gives me all the photos and these have a dimension of 5184 x 3456 pixels. I have to resize to 620 x 378, but when I use Ifanview or FreeSizer or Imagemagick for resizing, the resulting photos are resized to 567 x 378 pixels.
Then I want to know that the size of the photos I have to get a new picture of the size 620 x 378 pixels?
Not always is not always correct just a size larger.
What are the precautions I must have in resizing photos?