1. you are file open which its(the background will be made transparent
2. you are selection background like picture hereunder :
3. you are open help – export transparent image
4. you select;chooses 3 coming up choice – “ I has selected the area to made transparent”
5. next – there emerges question “ what will this image is used for?” – select;chooses “ online”
6. select;chooses format “ PNG” for good result.
7. and save - finish
Hopefully useful
