I took my work home from a photoshop class, not realizing I didn't save my pictures as .jpeg instead i saved them as .psd and I don't have photoshop to change them, is there a way to change a .psd format to .jpeg format without using photoshop? Or is there a way to add a .psd to a powerpoint without photoshop as well?
I've heard that some free image editing software (particularly Irfanview) can access the flattened raster preview that is usually stored in PSD files (much like the JPG previews that exist in DNG files). I must admit, I've never had to try this myself, but it should be possible to load this flattened image in IrfanView then re-save it as JPG.
More info here: http://www.makeuseof.com/tag/the-best-ways-to-open-a-psd-file-without-photoshop/