# Convert Character Sets

Filter can convert the character set of a source document to an arbitrary character set specified in the API, or to the character set of the operating system on which the output text is viewed. For this conversion to occur, a source character set must be identified. The source character set can either be determined by the document reader, or can be set in the API. The section Document Readers lists file formats for which character set information can be determined by the document reader. The character sets are defined as constants in the Filter class.

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