BatchPurifier is a tool to remove hidden data & metadata from multiple files. It is able to remove more than 50 types of hidden data from 20 file types, including Microsoft Office documents (Word, Excel, PowerPoint), OpenOffice.org documents, PDF documents, and popular image and media file types such as JPEG, JPEG 2000, PNG, SVG, AVI, WAVE, AIFF, MP3, MP4, and F4V.