making photos 72 dpi

When I export it gives me a choice of small, medium, large, and full size. Is "small" the choice I need to send them 72 dpi?

Answer is as before

DPI (dot per inch) is meaningless in a digital file which has only dots - no inches - inches come into play when you print or display a photo - read The Myth of DPI for a complete discussion

Basically if you have a 100 x 100 pixel photo and print (or display) it as a one inch square it will be 100 dpi, same photo displayed ten inches square will be 10 dpi - if you do not have inches you can not have dots per inch

You can make your photos and pixel (dot) size as a part of the export process

I am trying to comply with their instructions.

It is impossible to comply with that instruction (you can use photoshop or photoshop express to set a value of 72 dpi in a photo but it is meaningless as the referenced article explains - did you read it?

You need to know the pixel dimensions needed - or the print size so you can calculate the pixel size - dpi simply does not exist without "inches" - hence dots PER INCH

LN

DPI (dot per inch) is meaningless in a digital file which has only dots - no inches - inches come into play when you print or display a photo - read The Myth of DPI for a complete discussion

Basically if you have a 100 x 100 pixel photo and print (or display) it as a one inch square it will be 100 dpi, same photo displayed ten inches square will be 10 dpi - if you do not have inches you can not have dots per inch

You can make your photos and pixel (dot) size as a part of the export process

How big will the final pictures be? If they're going to be 3" by 5", then you'll need to send images that are 216x360 pixels to comply with a 72dpi requirement.

Great

when they added "and at 72 dpi" I figured there must be something I was missing.

Nope - they are missing it 🙂

LN