PDF-Portable Document file-Unique for being easy to access from anywhere anytime. This doesn't need any any software to be bought. This can be accessed from downloading free software from the internet.
PNG-PNG's are usually pictures that support transparency which means that they have a transparent background and they are easy to edit
PSD-Photoshop Document-This document is unique for saving your different layers so you could edit it later anytime whereas if you would save your work as a jpeg, all your layers will be lost and bind into each other. The PSD is also unique as it can open all the above important documents (GIF,PDF,PNG,JPG) A disadvantage is that this file can be only opened by those who already have Photoshop installed.
GIF-The GIF is a moving image or a short piece of video that is of short size(compressed) and it can be opened without any software so it is accessible to anyone.
JPG-JPGs are famous for their compressed size and accessibility.
In class we focused more on the GIF file. Martin taught us how to create a GIF file from a normal picture.
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