Often I’m asked “can you put this image or logo on this item for me?” with a link to a web site or an attachment to the E-mail.
If it’s not your own work or image and you are not connected with the other party, you can not use their images without permission. If I’m not sure I will ask the customer to provide proof they have permission to use an image, logo or artwork.
Images in print, broadcast, or on the web are copyright protected even if it isn’t stated. There are sites where you can down load images for personal use only. That means you can not use the image on something you are selling.
As a business owner I can not use someone else’s Images from print, broadcast, or on the web for you and profit from it. There are severe fines, penalties and possible jail time for copyright infringement. That’s just the law; that’s how it is.