instant alpha?

Looks like it was "improved." First click "Show Edit Toolbar" next to the search box. Then select "Smart Lasso" from the dropdown from the left-most tool (looks like a blue dashed line box). Use the Smart Lasso to select the item you want to select. Preview will ask about converting to .png with the part of the picture cut out.

Is this what you were looking for?

Richard

Watch out! After selecting the item, press crop. This will create a .png file BUT it replaces the original .jpg file. Best to duplicate the original before using the Smart Lasso or you will lose the original jpg!

Instant alpha is still there.

open file with preview.

short cut keys: shift command A will open the edit toolbar

leroydouglas has the best reply. Just ignore mine. If I knew how to edit or delete my posts I would.

Thanks,

Richard

Someone please help! I have MacBook Air (mid-2011) running OS X 10.9.4 (recently upgraded to Mavericks), and in my preview I do NOT have the instant alpha or smart lasso option. Where is it? I've tried all the hints and tips, but they still aren't there.