OpenRaster
↑ "Debate arises over an open raster graphics format" Nathan Willis, Linux.com Archive. July 07, 2006. Retrieved 2010-03-26.
↑ .psd Krita公式ドキュメント
↑ “Proposals and Application Specific Extensions — Open Raster Specification version 0.05”. www.openraster.org. 2022年4月10日閲覧。
↑ Drawpile Drawpile project. Sept 3, 2018. Accessed 2018-09-03.
↑ Chasys Draw IES Help - File Formats - Other Image Files. Dec 12, 2018. Accessed 2018-12-12.
↑ GIMP - Release Notes for GIMP 2.8 Accessed 2012-05-03.
↑ “Krita/OpenRaster status”. community.kde.org.