GroupDocs.Redaction for Java lets developers remove sensitive data from popular file formats like Microsoft Word, Excel, PowerPoint, PDF and image. The redaction library offers a single format-independent interface to redact any type of classified information including social security numbers, medical information, financial, proprietary, legal or even trade details through text, metadata and annotation redaction types. It allows you to save the document in its original format and create a sanitized PDF document with raster images of original pages.