Is it permissible to give your photos without Hijab to a non-Mahram man, who you do not know, in order for the photos to be developed or printed?
Bismihi ta'ala
If you know that this non-mahram man will look at your images without hijab, then no it is not permissible for you to give them to him to get them developed. Your choice is to either print the images yourself, using the available printing machines in certain stores, or go to a place run by a female, or other similar options.
And Allah knows best.