Click Add. This is a popup window. Click Add to add the PDFs that you've merged into this one file. Soda PDF PDF Joiner Online allows you to merge PDFs and the PDF editor is the only one for Windows and Mac. If you like having PDF files, this free online tool is the best way to get them into one huge document that you can share with others! Free Online MS Word to PDF Converter Here's an option that doesn't require Internet connection to convert PDF files online. You'll need some Adobe PDF software installed. The free and easy PDF Convert Online tool will do the conversion, including making it compatible with different device screens. Free Online MS Word to PDF Creator Here's another tool that doesn't require Internet connection and is great for creating PDFs online. Its creators say that it generates “high-quality PDF and DOC files with very few limitations on formatting,” which is very high praise. The software also supports HTML/CSS/JavaScript, but we think the lack of an option for Word document export is a bit strange. FREE Online Gimp to PDF Converter Download the free Gimp and install it. The Gimp is a popular open-source photo manipulation and graphic creation software. Just download and install Gimp. Go to File > New. Give your PDF file a description. Select the file type. Pick the resolution. Choose the PDF type. Click Copy. Select the file you want to convert in the browser. Click Create. PDF Convert Online gives you a choice of a free or paid version. The paid version gives you the ability to use it with Gimp, but we don't think that's too interesting a feature. Either way, Gimp has a lot of great features, so if you're a Gimp user, and you want to make a PDF of Gimp or Photoshop files, this program will work for that purpose. (If you are a Gimp user and want to make a PDF of our documents, our online converter works great for that purpose too). Soda PDF Joiner Online will make the merging process really easy, and you have the ability to merge multiple PDFs into one with it. It works on a combination of PDFs.