I want to share with you a simple command line utility I've created in D using the AuburnSounds' printed package. It converts images (JPG, PNG) to a PDF file.
Backstory. I needed a tool to convert N images into a PDF file at work. It's fine to use online solutions, but it was slow and it needs an internet connection to work. So I have a written a simple tool that helped me convert 30+ images in an instant.
I found it very convenient to use. Hope you do too, if you ever need one.