# Okapi Framework - Steps ## Raw Document to Filter Events Step
- Overview - Parameters |
Steps | Developer's Guide | Okapi Framework

If you are using an Okapi Tool after the M9 release, you should be using the wiki online help:
http://www.opentag.com/okapi/wiki/index.php?title=Raw_Document_to_Filter_Events_Step

## Overview

This step extracts the content of a raw document into a set of filter events.

Takes: Raw document
Sends: Filter events

This step is used to take a raw document with an associated filter configuration and send the filter events down the pipeline. It basically extract the content and structure information of the input so steps that take filter events as input can be used. This step is generally the first one of the pipeline, but it can be placed after any step that sends a raw document.

To merge back filter events into a raw document use the Filter Events to Raw Document step.

## Parameters

This step has no user parameters. All the parameters are provided by the calling application.