'existing photo' is a correct and usable phrase in written English.
You can use it to refer to a photo that has already been taken or exists in some form. For example, "The blog post included an existing photo of the author."
Of course, one could argue that Shutterfly was actually a bit behind the curve, which is why startups like Penguin Digital came to exist in the first place – there was a market that was under-served by the existing photo giants.
But even if their births are jeopardised, how would this corrupt an already existing photo?
Add the main title text, upload a new photo or choose an existing photo from your library, add photo credit if applicable, and add additional caption text (optional).
Add the main title text, upload a new photo to accompany the video or choose an existing photo from your library, and add the YouTube or Vimeo link.
Using the "Browse" option, either choose an existing photo from your library (such as a Stock Photo), or upload a new photo.
That voting mechanism is its main twist vs existing photo sharing giants like Instagram.
This paper lays the groundwork for a new approach to geo-privacy of social images: Instead of requiring a change of user behavior, we start by investigating users' existing photo-sharing practices.
In 2014, 1tn photographs were taken, more than a quarter of all previously existing photos.
In other words, Microsoft had created a seamless, successful photosynth using hundreds of existing photos, taken by different people at different times using all kinds of cameras.
It works with both existing photos and new ones you take, and it lets you combine its effects (100 of them, get it?).
He then combines those elements with existing photos and recreates the resulting images using graphite, in a months-long process of drawing across a single sheet of paper, from top left to bottom right, to avoid smudges.
