# PreFilterMaxReturnedBytes

The maximum number of bytes that a pre-filter task can produce without a resulting Eduction match.

The pre-filter process generates windows with potential matches, based on your pre-filter criteria. Eduction runs matching on these windows as soon as the pre-filter generates them. `PreFilterMaxReturnedBytes` allows you to specify a threshold for the amount of data that the pre-filter can output without a subsequent match. This option allows you to more quickly reject documents that match the pre-filter but are unlikely to contain real matches.

This parameter has no effect for documents that return an Eduction entity match before the threshold is reached.

To turn off this pre-filter threshold, set `PreFilterMaxReturnedBytes` to 0 (unlimited).

NOTE: If you use Eduction SDK functions to set a pre-filter byte threshold, the SDK functions override the value of the `PreFilterMaxReturnedBytes` configuration parameter.

Type: | Integer
Default: | 0 (unlimited)
Required: | No
Configuration Section: | Eduction
Example: | `PreFilterMaxReturnedBytes=1000000`
See Also: | PreFilterTaskN

_FT_HTML5_bannerTitle.htm