Copy-protected .PDF file created with CopySafe PDF software; prevents images and text from being copied and protects against Printscreen and screen capture commands; may also include printing protection, password protection, and date expiration.

Navigational chart format used by the Office of Coast Survey (OCS); also referred to as NOAA ENC files, which stands for "National Oceanic and Atmospheric Administration" (NOAA) "Electronic Navigation Chart" (ENC) files.

The NOAA ENC file format is defined by the International Hydrographic Organization S-57 standard. ENC data is used to support marine transportation infrastructure and coastal management. NOAA ENC files are saved as a database of chart features. Information saved in an ENC file includes the location of each chart feature, as well as attributes such as color, shape, depth, etc.

An ENC file is a generic encoded file that may use one of several different types of proprietary or standard encodings. It is encoded to help protect the file from unauthorized use, or to help set up the file for a particular use, such as Internet transfer.

ENC files may be encoded in the .UUE format, which can be opened with a program such as StuffIt Deluxe. However, ENC files that use a proprietary encoding can only be opened by the program that encoded the file.

Musical score created by Encore, a program used to compose music; may contain instruments, notes, lyrics, time signatures, and key signatures, as well as the title and composer information; used to store compositions and print musical scores.

Encore can import and export standard Music XML files to integrate with other musical notation programs. The software also supports high-quality prints using PostScript and TrueType technologies.