Под фото есть подпись.

There is a caption under the photo.

Breakdown of Под фото есть подпись.

• под: under
• фото: the photo
• подпись: the caption

Questions & Answers about Под фото есть подпись.

Why is есть used here if Russian usually leaves out to be in the present tense?

Because есть here does not just mean the missing present-tense is. It has an existential meaning: there is / there exists.

So:

Под фото есть подпись. = There is a caption under the photo.

Compare:

• Это подпись. = This is a caption.
  Here Russian does not use есть.
• Под фото есть подпись. = There is a caption under the photo.
  Here есть is natural because you are stating that something exists in that place.

In everyday Russian, есть is often omitted in some contexts, but in this sentence it sounds normal and clear.

Why is it под фото, not something like под фотографию?