Whether you're in the market for a simple conversion utility, or you happen to be a full-fledged media junkie, Media Converter for Android should have you covered. It's easy to use, performs well, and converts pictures, videos, music, and other files into just about any compatible format.
One of the things that makes Media Converter work well is that it actually offloads its duties to a remote server rather than performing them on your device. This means a much more lightweight app and increased support for file formats. On the downside, this also means that you must have a data connection for the app to work. While we don't think this should be a deal-breaker, it is worth noting. Otherwise, we were were perfectly happy with Media Converter's performance. It let us easily convert pictures to PNGs, documents to PDFs, even videos to MP3s. And after converting, we were able to send files via e-mail, or Twitter, and even upload directly to Dropbox.
So, if you're interested in turning your Android device into a Swiss Army Knife of file conversion, we highly suggest giving Media Converter a try. At only $2.99 in the Android Market, we think it's a steal.