Other Preserve photo size when uploading ? Possible

[max2]

Each picture is 13 to 14 MB. Have 21 of them.

 

[now i see it]

Depends on how you send them and where.
If you’re uploading them to your own server - the size won’t change.
If you send them via iMessage, it will compress them.
Email provides you with choices.
Some websites may crunch them down when you upload to them. Nothing you can do to prevent that.