Good news, back up to a PC, pictures taken with a smartphone is simple and fast, even if you have an iPhone.
To authorize the connection.
The first step is to allow the connection between your iPhone and your computer.
Unlock your iPhone and connect it to your PC via a cable Lightning or 30-pin connector (depending on your model of phone).
A pop up will then appear on your iPhone asking you to authorize the computer to access your phone. Confirm the authorization by pressing rely.
Windows recognizes the presence of your phone and a window pops up asking what action to take.
If the window does not appear go through thefile Explorer and then in The PC to find your phone.
If you want to have a quick overview of your device before extracting your photos, select the option to Open device to view files.
Click on internal Storage and then DCIM.
You have access to all the photos, impressions, screens and videos from your iPhone.
It only remains for you to copy/paste the photos and videos you want to save it in a folder on your computer, and to delete those that you don’t like.
The Photos tool.
You can also import your images using the photo tool. This method is especially useful if you want to save all of your photos at once. You can not delete photos from your phone from this interface.
If you use iTunes on your PC, you can also use the program to import your photos. iTunes sometimes has problems to work on the PC a little older, so this technique is recommended only if you have a newer version of the software and a computer powerful enough.
Another solution to backup photos from your iPhone : use a Cloud.
A Cloud is a storage cloud-based online which allows you to backup your photos (and other files) and access them from any device.
Verify that you are connected to Wi-Fi before syncing your phone to a Cloud or you will use a lot of your Data.
Also check out 17 tips to free up even more space on your iPhone.