# Use the C++ Language Implementation of the API

The C++ API is designed to make extraction of content from documents as straightforward as possible. The primary advantage over the C API is the use of C++ features to provide a simpler interface that is easy to use.

The API consists of:

- Header files that define all of the classes and methods required to provide access to document content. These can be included in your own code to provide easy access to the API.
- Source files that should be compiled into a static library that you can then link to from your code. These implement the functionality that you can access through the headers.

You can find details of all the classes and methods mentioned in this section in the C++ API Reference section of this guide. The C++ Filter SDK also comes with a number of Sample Programs.

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