Optimisation

optitimisation is when you change the settings or detail of a certain document or object for e.g. if you have a computer program thats laggy, then you would optimize it to run more smoothly.

There are only a few things that you can optimze such as:

The size of the image, like if you want to send an image by email and the file size was 1GB then you can optimize it to be a smaller file so it sends quicker over the internet.

The quality of the image.

DPI(dots per image) per image.

File type of image.

Number of colours in image.