.cpt is a filename extension denoting one of several different kinds of files:
* A
graphics file format
An Image file format is a file format for a digital image. There are many formats that can be used, such as JPEG, PNG, and GIF. Most formats up until 2022 were for storing 2D images, not 3D ones. The data stored in an image file format may b ...
used by some versions of
Corel Photo Paint
Corel Photo-Paint is a raster graphics editor developed and marketed by Corel since 1992. Corel markets the software for Windows and Mac OS operating systems, previously having marketed versions for Linux (Version 9, requiring Wine). Its primary m ...
. It is also possible to open CPT version 6 files with
IrfanView
IrfanView () is an image viewer, editor, organiser and converter program for Microsoft Windows. It can also play video and audio files, and has some image creation and painting capabilities. IrfanView is free for non-commercial use; commercial u ...
, but not with
Paint Shop Pro
PaintShop Pro (PSP) is a raster and vector graphics editor for Microsoft Windows. It was originally published by Jasc Software. In October 2004, Corel purchased Jasc Software and the distribution rights to Paint Shop Pro. PSP functionality can b ...
(although it is from
Corel
Cascade Parent Limited, doing business as Alludo (pronounced like "all you do"), is a Canadian software company headquartered in Ottawa, Ontario, specializing in graphics processing. Formerly called the Corel Corporation ( ; from the abbreviation ...
). CPT version 6 is an almost identical copy of the
TIFF
Tag Image File Format, abbreviated TIFF or TIF, is an image file format for storing raster graphics images, popular among graphic artists, the publishing industry, and photographers. TIFF is widely supported by scanning, faxing, word processin ...
format, whereas since Corel Photo-Paint 7.0 (released in 1997), this was deprecated for a new proprietary format (known as CPT7), however the user can still export the older TIFF-based CPT6 files.
Chasys Draw IES
Chasys Draw IES (previously called Chasys Draw Artist) is a suite of applications including a layer-based raster graphics editor with adjustment layers, linked layers, timeline and frame-based animation, icon editing, image stacking and comp ...
can open CPT7 files as well as CPT8 and the latest CPT9; this support is available as from Chasys Draw IES version 4.58.0
Corel Photo Paint is not released as a standalone program. It is part of the Corel Draw Graphics Suite, available only for Windows.
* The .cpt extension is used for files encrypted using
ccrypt
ccrypt is a utility for the secure encryption and decryption of files and streams. It was designed as a replacement for the standard UNIX crypt utility, which is notorious for using a very weak encryption algorithm.
ccrypt is based on the Rijnda ...
.
* .cpt is used for screen captures in the video game
Tekken Tag Tournament
is a spin-off of Namco's ''Tekken'' fighting game series. It is the fourth installment in the ''Tekken'' fighting game series.
''Tekken Tag Tournament'' was released as an arcade game in 1999, before becoming a North American and European launch ...
(PlayStation 2), which are saved to the Memory Card.
* .cpt was a filename extension used by a popular software data compression utility named
Compact Pro
Compact Pro is a software data compression utility for archiving and compressing files on the Apple Macintosh platform. It was a major competitor to StuffIt in the early 1990s, producing smaller archives in less time, able to create self-extract ...
in pre-OS X operating systems for Macintosh. A PC version was also available, ExtractorPC. Neither program is actively supported.
Graphics file formats
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