FreeScrub
FreeScrub is a PyGTK based application which will scrub EXIF and other metadata out of images and documents. This is useful for people who want to publish images and documents without revealing any information about their location, their camera or their computer hardware. It’s also quite useful for web developers as it reduces the size of the file by removing unneccesary text strings embedded inside files.
Works on Linux and Windows, with support for PNG, PDF, and JPEG files.