Calamus SL document
File type: Document file
A cdk file is a document created by Calamus SL, a desktop publishing and page-layout application.
It stores a Calamus SL document, including its page layout and associated content.
Found 4 different file type records with the same cdk filename suffix.
File type category:
Document file
Date updated: October 25, 2026
The cdk file extension is associated with Calamus SL, a Dutch desktop publishing and page-layout system developed by Invers Software for Microsoft Windows.
A cdk file contains a document created in Calamus SL. It can preserve the document's page arrangement and the text and graphics used in the layout.
Calamus SL is available on multiple platforms. The CDK format is primarily used as the native document format within Calamus SL.
Use Calamus SL to open a cdk file. Start the application and open the file from its file menu, or associate the file extension with Calamus SL.
Open the cdk file in Calamus SL and use the application's export functions to create a document in another supported format.
Because CDK is Calamus SL's native document format, conversion should be performed from within Calamus SL.
Software applications that can open cdk files:
Multiplatform
Software applications that can edit cdk files:
Multiplatform
Software capable of saving cdk files:
Multiplatform
Software apps that create cdk files:
Multiplatform
Software apps that print cdk files:
Multiplatform
File type category:
Various data file
Date updated: October 25, 2026
The cdk file extension is associated with CADKEY, a mechanical CAD program for Microsoft Windows developed by Kubotek.
A cdk file contains a CADKEY drawing or model and its design data. It is a native document format for CADKEY and is intended to be opened and edited in that software.
Use CADKEY on Microsoft Windows to open a cdk file. Choose the file from CADKEY's Open command.
Open the cdk file in CADKEY and use its export or Save As commands to create a supported exchange format. The available formats depend on the CADKEY version.
Software applications that can open cdk files:
Microsoft Windows
Software applications that can edit cdk files:
Microsoft Windows
Software capable of saving cdk files:
Microsoft Windows
Software apps that create cdk files:
Microsoft Windows
Software apps that print cdk files:
Microsoft Windows
File type category:
Various data file
Date updated: July 14, 2019
Record marked as obsolete and not updated for a long time.
The cdk file extension is associated with the CD Katalog, a Polish application for Microsoft Windows operating system.
Most likely some old format without support. No further information could be found.
File type category:
Disk image (ISO) binary file
Date updated: March 22, 2019
Record marked as obsolete and not updated for a long time.
The cdk file extension is associated with the IBM OS/2 operating system. The cdk file contains floppy disk image.
Mime types:
file/binary
Most likely some old format without support. No further information could be found.
Software applications that handle other tasks involving cdk files:
Other operating systems or devices
Language
