iOS Transfer is supported both Windows and Mac. Confirm your computer operating system before downloading and make sure you're downloading the suitable one.
How to Transfer Photo Library from iPhone to Computer
There is a step-by-step guide would be shown below that based on Windows version. The Mac version would be similar, you can also follow the guide.
Step 1 Install this program and connect iPhone with your computer
Install the transfer after downloading it. Connect your iPhone to your computer via a USB cable. The transfer will detect your iPhone automatically and shows it in the primary window.
Note: You need to install iTunes before using this program.
Step 2 Transfer Photo Library from iPhone to computer
Click the "Photos" branch at the left column which brings you the photo window. Select the Photo Library you wish to transfer, then choose the save path to store the selected Photo Library at the small window. You can also drag and drop Photo Library conveniently to any folder where you decide to save it.
In addition, you can open the Photo Library to choose some particular photos that you want to export. After the selection, just simply click "Export to" to transfer them to your computer. This function also supports drag-and-drop. Click "OK" after the transferring is done. It takes only 1 or 2 minutes in common.
Note: iOS Transfer is fully supported with iPhone 5s/5c/4s/4/3GS.
In fact, iOS Transfer can do more than Photo Library transferring. You can use it to export Camera Roll from iPhone to computer, delete iPhone Photo Library, and transfer photos from computer to your iPhone Photo Library as well.