Electronic documents have an associated file structure defined by the original creating application. This file structure is referred to as the “native format” of the document. Because viewing or searching documents in the native format may require the original application (for example, viewing a Microsoft Word document may require the Microsoft Word application), documents are often converted to a vendor-neutral format as part of the record acquisition or archive process. “Static” formats (often called “imaged formats”), such as TIFF or PDF, are designed to retain an image of the document as it would look viewed in the original creating application but do not allow metadata to be viewed or the document information to be manipulated..”