There are various sites that provide free images. Some give you the tools to create the images yourself, and some provide royalty free or creative commons images for you to use.
We have bolded the ones we recommend for quality of images and ease of use.
NB: If photos have people on them, there may be a model-release involved. Please check for these.
Royalty free or creative commons images ready to use
Image editors - resize, crop, apply effects to your own images
Other useful resources
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