Many of my resources are shared as PDFs. As most people know, a PDF is the best way to save a document so your formatting, style, and information is conveyed as you originally created it. Often I create separate PDFs and then need to combine them into one single file for publishing or sharing. I wanted to share an online, free site that can easily join PDFs - www.joinpdf.com. I love that you can upload multiple files, join them into one PDF, and download it right back to your computer, within a matter of seconds - and it's FREE!!! You can make donations to support their site, in their words, "if the site helped you save (or earn) money!" This site definitely does that!