Zamzar - Free conversion online of many type of documents (images, text, video, audio...
CloudConvert - convert anything to anything - more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats supported.
Convertio - File Conversion in the Cloud
Online Convert - Convert files like images, video, documents, audio and more to other formats with this free and fast online converter.
Batch Word Replace - Replace text in, add or remove content, and edit thousands of Word documents in doc and docx formats, PDFs, RTF documents, and other text documents.
online2pdf - This Online PDF Converter can convert all your files to PDF but also compress and merge PDF files! Word, Excel, PowerPoint, images and any other kind of document can be easily converted to PDF on Online2PDF.