Converting many images to a single PDF document...

Thanks to this post:

http://forums.macrumors.com/showthread.php?t=107955

There is a great way to convert many images to a PDF file. Useful if like me you have had to print out a 21 page document and intiial/sign each page then scan them back in and end up with 21 jpeg images of each page.

Using Preview on Mac you can load all the jpegs in, select them all and print to PDF and it creates a 21 page PDF file. Awesome! Full instructions are in the forum link and here:
1. Open all JPG's (or PNG's, or other graphics files) in Preview.
2. Make sure sidebar (showing thumbnails of each page) is visible.
3. Make sure order of JPG's is correct (if not, drag them into the order you want).
4. Select all thumbnails (shift-click is an easy way).
5. File > Print Selected Images (caution: NOT just "Print" but "Print Selected Images"
6. Lower left corner > Save as PDF.

Sweeeeeet!