ERDAS ECW/JP2 SDK v5.5 Update 3 Windows


Release Date: Monday, January 11, 2021

ERDAS ECW/JP2 SDK (Windows) Update 3 provides support for reading and writing ECW and JPEG2000 file formats in third-party applications. The product is licensed according to intended use - see Licensing in the ERDAS ECW JP2 SDK User Guide for more information. This installer contains all license types, including the free Desktop Read-only license.

Update 3 includes additional bug fixes and stability improvements.


  • Supported platform of the ECW/JP2 SDK

Install Instructions

Selected Highlights

  • More robust JP2 encoding and decoding, various fixes to PLT calculations and multi-tile images.
  • Fixed crash parsing GML v2 georeferencing box.
  • Improved error messages during IO failures.
  • Better reporting of invalid ECW and JP2 files in ECWCheck.
  • Various bug fixes and optimizations.


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