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