JPEG to PDF - JPEG to PDF is a free program that can convert image files to PDFs.
PDF Joiner - This online tool allows you to join several PDF documents into a single file, free of charge.
JPG to PDF Converter - Free online conversion of images to PDF files.
PDFChef Merge PDF - PDFChef Merge PDF is an online tool that allows you to merge multiple PDf files into one quickly and securely.
JPG 2 PDF.ru - Combine multiple JPG images into one PDF file
PDFill - Open, View, Edit, Save and Print PDF Documents without Adobe Acrobat