Re: How do I delete photos on my Note 3
delete photos ... before saving to files
Let's understand that exactly.
The photos ARE files. If you delete the photo, you're deleting the file. That would mean that you want to take a picture, look at it and delete it. Never see it again. If that's what you mean (and I do it to check things out before posting an answer, so I don't give a wrong one), do what B. Diddy said.
But if you mean (and I've known people who think this way) that you can delete the photo but keep the file, that's like throwing away a dollar but keeping the money.
Just so that you don't delete a file you really wanted to keep. (The wording of your post is just a tad ambiguous. You want to check them before they get saved, so you can not save them, or you want to save the files but delete the photos - it can be read either way.)