how can i make a photo collage on my mac?

Answer 1

Depends on the program you have on your MAC? If you have Photoshop then use this link to see a tutorial on the subject.

http://www.graphic-design.com/Photoshop/montage/index.html

If you do not have a program this check this link for MAC friendly software.

http://www.freedownloadmanager.org/downloads/photo_collage_software_software/

Any photo editing program Adobe Photoshop, Corel Paint Shop Pro, etc allows you to work with layers- put 1 photo per layer and manipulate each individually. This allows for effects, colors, blending, trimming, etc. to each and not the whole set for better creativity.
Good luck and have fun ;)

Answer 2

I'd say use appleworks (drawing or painting) and see if you can save it as a jpeg image and make sure you use the thumbnail photos if you upload your photos from a digital camera otherwise you'd have to put in a lot of work by downsizing your photos.