A-PDF Image to PDF will convert image files to PDFs. It converts single images or several image files into a single PDF. You can also convert color images to black and white and rotate files with this program.
The interface's design is clean and efficient. There's a Help file if needed, but the program is easy to use: simply click the "Add Image" button and navigate to the files that you want to convert into a PDF. If you select more than one image, thumbnails of each selected image appear in the navigation window. Once you've selected all your files, click "Build to One PDF," and the program will go to work. You also have the option to add to an existing PDF, to create multiple PDFs, and to e-mail your results. There's a drop-down menu where you can select the quality of the PDF. Under the Image window, you can convert color images to black and white, rotate them, and crop them. There is a De-Skew option under the Batch Process tab in the Image menu that would be handy for straightening crooked pages of scanned multipage documents. Along those same lines, the program has a Scan Paper button that makes it easy to use it with a scanner.
This is a free trial version of the software. It's fully functional, but it puts watermarks on all converted documents. The program installs and uninstalls with no problems. A-PDF Image to PDF is a good, inexpensive solution for PDF conversion.