JPEG to PDF (ImageToPDF) is a program for converting JPEG (.JPG) and JPEG2000 (.J2K or .JP2) files to PDF. This program now supports multiple images and multiple pages. The program allows you to adjust position and size. Also, the program now supports additional image formats (BMP, GIF, PNG, TIF), and a command-line syntax has been added.

JPEG to PDF is now written in VB.Net, and supports additional image formats: BMP, GIF, PNG, TIF. Also, This program now supports commandline execution, where the syntax is:
JPEGtoPDF.exe "pdfFileName" "imgFileName1" "imgFileName2"

The license of this software is Freeware, you can free download and free use this pdf converter software.