Can I set Preview to default to .jpg and Best quality when saving?

I tried as well. Company makes more $ selling bigger hard drives. So bigger file saved, = more $. So you can ask all you want and will probably be ignore Simple. My screen capture default to PNG about 2MB. i convert to JPEG, and re-size to about 250k and look fine. One solution is to save as PNG, then run a Photoshop script to convert the entire directory of files to what you want.

http://www.makeuseof.com/tag/how-to-change-the-default-screenshot-image-format-o ther-properties-mac/

There may be a hidden setting for this somewhere in Preview's makeup that could be put into its preferences configuration to do this, but my guess is that this is not possible. Preview will by default save to the original file's format. If you are simply converting files you can set up an Automator workflow to do this with Preview, though I'm not sure there is a JPG quality option with an Automator workflow (can't find one).

your guess is incorrect

the default save file format in preview is PNG regardless of what format file you open

if you open a jpeg and select and copy a portion of it and then save to clipboard and then save it as anew document, it will default to PNG

like the original poster i have been trying to get a satisfactory answer to this question and i believe there is simply no way to chnage the default image save format of preview

i hear you can do it for screenshots but i have tried and can't even do that sucessfully

Just waiting to see what Google comes up with for an OS...

post.user_wrote.label:

Just waiting to see what Google comes up with for an OS...

Chrome OS was released a few years ago, you can have it now (Google for it)

Easy Mode off

What/where is easy mode set?

Is there anything in print about how Preview works in 10.7?