METHOD AND SYSTEM FOR SELECTING ENCODING FORMAT FOR READING TARGET DOCUMENT

A method and system for selecting an encoding format used for reading a target document are provided. The method comprises reading a reference document with at least one reference encoding format and determining all or some disorder code patterns obtained when reading the reference document with the reference encoding format; reading the target document with one encoding format each time; for each encoding format, comparing data generated when reading the target document with this encoding format and the determined disorder code patterns to determine disorder codes generated when reading the target document with this encoding format; counting disorder codes generated when reading the target document with each encoding format, and making a comparison to determine the encoding format used for reading the target document.