Welcome to the forum.
I wonder, however, if you meant to post to the Photoshop Elements Forum, and not to the Premiere Elements (Video editing program) Forum?
If you want PSE, then see the above link.
To Save_As uncompressed, you might want to look at PNG for the format.
Actually, if you're trying to produce vector art, you're going to need the Illustrator forum. Photoshop and Photo Elements are raster programs.