CMX to XWD Converter

CMX to XWD conversion — X Window dump images free

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X11 Documentation

CMX to XWD creates X Window dump images from your Corel designs. Useful for X11 testing, documentation, and archival.

Secure Processing

Your CMX uploads are deleted after conversion. XWD outputs are removed within 24 hours — complete data privacy.

Cloud Conversion

All processing happens on Convertio servers. No X11 tools or local software needed — just a web browser.

How to convert CMX to XWD

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose xwd or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your xwd file right afterwards

About formats

CMX (Corel Presentation Exchange) is a vector graphics exchange format developed by Corel Corporation, introduced with CorelDRAW 5 in September 1994. Designed as a cross-application interchange format within the Corel product suite, CMX stores vector objects, text, bitmaps, and rendering attributes in a structure accessible to CorelDRAW, Corel PHOTO-PAINT, Corel Presentations, and other Corel applications without requiring each program to understand the full CDR native format. The format uses a chunk-based architecture that encodes geometric primitives, fill patterns, outline properties, and color definitions in a standardized way, supporting both 16-bit and 32-bit variants. CMX gained significance beyond the Corel ecosystem through its adoption by third-party applications and its role in clipart distribution — many vector art collections from the mid-to-late 1990s shipped in CMX format. One advantage is interoperability within design workflows: CMX provided a practical bridge for moving vector content between different Corel applications while preserving visual fidelity, gradients, and transparency attributes. The format's inclusion of both vector and bitmap data within a single file is another strength, allowing complex mixed-media illustrations to be exchanged as self-contained units. Microsoft also added CMX import support to some Office applications, expanding the format's reach. While modern Corel applications primarily use CDR for native work and export to SVG, PDF, or EPS for interchange, CMX files from the CorelDRAW era remain widely encountered in legacy asset libraries.
Developer: Corel Corporation
Initial release: 1994
XWD (X Window Dump) is a screen capture image format defined as part of the X Window System by the MIT X Consortium, dating to approximately 1987. The xwd command-line utility captures the contents of an X window or the entire screen and saves it as an XWD file — functionally equivalent to a screenshot utility but predating the concept by years. XWD files contain a detailed header specifying the X server's visual type, bit depth, byte order, bitmap unit and padding, the window's dimensions, border width, and color map information, followed by the raw pixel data exactly as represented in the X server's framebuffer. This means XWD files faithfully capture the exact pixel representation used by the display hardware — including server-specific byte ordering, padding, and color organization — making them primarily useful on the system where they were captured or on systems with compatible display configurations. The header also stores the window name string and the full color map entries for indexed-color visuals. XWD supports all X11 visual types: StaticGray, GrayScale, StaticColor, PseudoColor, TrueColor, and DirectColor, at any bit depth supported by the X server. One advantage is exact framebuffer fidelity: XWD captures the window's pixel data in its native format without any color space conversion or compression, making it the definitive record of what the X server was actually displaying. The format's integration with the X11 command-line toolkit provides another practical benefit — xwd can capture specific windows by ID or name, be triggered remotely via SSH, and piped directly to format converters. XWD files are handled by ImageMagick, GIMP, xwud (the viewer companion to xwd), and xv.
Developer: MIT X Consortium
Initial release: 1987

Frequently Asked Questions

Why convert CMX to XWD?

XWD is the X Window Dump format for capturing screen content. Converting CMX to XWD is useful for X11 documentation and testing.

What opens XWD files?

The xwud utility, GIMP, XnView, and most X11-compatible image viewers can display XWD files on Unix and Linux systems.

Is XWD a standard format?

XWD is a long-established format in the X Window System ecosystem, commonly used for window screenshots and documentation.

Is the conversion free?

Yes — Convertio provides free CMX to XWD conversion. Premium options are available for higher-volume use.

How fast is it?

Conversion finishes in seconds. Cloud servers ensure speed regardless of your local device.