"Convert JPG to PDF with PDFCool" is a "Lite Version" of PDFCool Studio and an easy-to-use but powerful PDF converter. You can convert JPG, JPEG, PNG, JPG2000, BMP, GIF and other images to PDF. Its biggest feature is that it can handle and convert multiple files in batches. It runs in multi-documents mode, you can easily preview multiple PDF documents at the same time.