If you have the Photos App, and are using iCloud, then they should sync over WiFi or Cellular or both, depending on how you set it up.
Now saying that, what do you mean 'Mac file' ? And while you are at it, let us know what iOS .v is on what iPhone and the Mac specs and OS you are running.
I haven't sync'd my phone or iPad to iTunes in quite some time (talking years) so I can't run you through that process. Now looking at iTunes, under Photos mine has "TattooedMacs iPad air2 can access Photos in iCloud. Photos can be downloaded via Cellular or WiFi"