If you are uploading images of your family vacation or anything else that's specific to you then you should create your own object type (an object type is just a way of grouping your images together):
Create Your Own

Alternatively, if you have already created the object type or if you are uploading images of golf balls or key chains or anything else for which there is already an object type then go ahead and choose the correct type here:

Allowed image file types: .jpg .gif .png
Allowed compressed file types: .zip

All other file types will be ignored. Any file structure in the compressed file will be ignored except in so far as it is used to order the images as they are imported.

The order of the images is important if you have any objects that have more than one image. During the process of entering info about an image, you can mark the image as belonging to the previous object created. That is how multiple images are attached to a single object using this tool.

Maximum file size allowed (in bytes): 10,000,000. (That maximum size can be increased for users in good standing who request an increase. If you have uploaded some valid content already then you can make the request by posting in the "I wanna be an admin!" forum.)

File: