The folks at Dropbox continue a run of handy updates with another addition that keeps you from having to venture outside of the cloud repository's app. In the latest version, Android users will notice a built-in PDF viewer, complete with all the sharing tools needed to distribute files. What's more, you can now search the text of PDFs, Word documents and PowerPoint files to find the exact item you need. Looking to edit a single slide for an upcoming presentation? Swiping over to the file and entering a keyword takes you right to it. The new version should arrive in the Play Store in the next few days, and your trusty mobile device will most likely alert you when it's available.