Another handy ImageMagick trick this week.
For one reason or another, many people still scan documents to JPEG files rather than PDF files.
You can convert all of these images to a PDF in a single command.
convert img1.jpg img2.jpg img3.jpg output.pdf
Having used PDFcreator on Windows for many years, a PDF printer is something that you miss very quickly on a fresh install operating system.
Linux is no exception, and cups-pdf provides a PDF printer for the most excellent CUPS. (I normally despise Apple software, but I have to give them credit for CUPS. :))
To install on a Debian/Ubuntu machine:
apt-get install cups-pdf
Once installed, you should now have a new PDF printer showing up in CUPS.