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# The Conversion API (Java)

#### Experimental!

Conversion is an experimental, innovative, and rapidly changing new feature for App Engine. Unfortunately, being on the bleeding edge means that we may make backwards-incompatible changes to Conversion. We will inform the community when this feature is no longer experimental.

The App Engine Conversion API converts documents between common filetypes using Google's infrastructure for efficiency and scale. The API enables conversions between HTML, PDF, text, and image formats, synchronously or asynchronously, with an option to perform optical character recognition (OCR).

This reference describes the Java Conversion API. It has the following sections:

- Overview
- Javadoc Reference