CRW to CGM Converter

CRW to CGM vector conversion — quick and free online

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Safe Conversion

Security is built into every conversion. Uploaded CRW images are deleted instantly after processing, and CGM results are cleaned up within 24 hours.

Rapid Results

Get your CGM output fast — CRW conversion typically finishes within moments, powered by optimized server infrastructure.

Effortless Process

A clean, minimal workflow — upload your CRW image, choose CGM, and download. No confusing options or hidden settings to worry about.

How to convert CRW to CGM

1

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

2

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

3

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

About formats

CRW is Canon's first-generation RAW image format, based on the Camera Image File Format (CIFF) specification developed jointly by Canon, Kodak, and other imaging companies in the late 1990s. Used by Canon's consumer and prosumer cameras from approximately 1998 through the early 2000s — including the PowerShot G-series, EOS D30, EOS D60, and EOS 10D — CRW files store the unprocessed 12-bit sensor readout in a heap-based container structure that differs fundamentally from the TIFF-derived approach used by most other camera manufacturers. The CIFF container organizes data into a hierarchical directory of heap entries, each identified by type and tag, containing the raw image data, JPEG thumbnail, EXIF information, and Canon's proprietary metadata including White Balance tables and Picture Style parameters. CRW was eventually replaced by the CR2 format starting with the EOS-1D Mark II in 2004, as Canon moved to a TIFF-based container that aligned more closely with industry conventions and supported higher bit depths. One advantage of CRW files is historical completeness: they preserve the full original sensor data from an important transitional period in digital photography, and the 12-bit captures from cameras like the EOS D30 still produce excellent results when reprocessed with modern RAW converters. Broad legacy support is another strength — despite its age, CRW remains readable by Adobe Lightroom, Photoshop, RawTherapee, and other modern converters, ensuring these early digital negatives remain accessible.
Developer: Canon
Initial release: 1998
CGM (Computer Graphics Metafile) is a vector graphics standard defined by ISO 8632, first published in 1987 and developed through the ISO/IEC JTC 1/SC 24 committee. The standard defines a device-independent format for storing and transferring two-dimensional vector graphics, raster images, and text. CGM supports three encoding methods: character encoding (compact text representation), binary encoding (efficient machine-readable form), and clear-text encoding (human-readable for debugging). The format describes graphical primitives including polylines, polygons, ellipses, circular arcs, splines, and text with associated attributes for color, line style, fill patterns, and clipping boundaries. CGM found its strongest adoption in technical documentation, particularly in aerospace, defense, and industrial sectors where long-term archival and precise technical illustration are critical. One advantage is formal standardization — as an ISO standard, CGM provides vendor-neutral, specification-driven interoperability guaranteed across compliant implementations. The format's adoption in specialized industries is another practical strength: WebCGM, a W3C profile of CGM, became the mandated illustration format for interactive electronic technical manuals in the aerospace industry (ATA iSpec 2200), ensuring CGM's continued relevance in aviation maintenance documentation. While general-purpose vector work has moved to SVG and PDF, CGM persists in regulated industries where certified, standards-based graphics interchange is mandatory.
Initial release: 1987

Frequently Asked Questions

Why should I convert CRW to CGM?

Converting CRW to CGM creates a vector representation of your Canon image — useful for design projects that require scalable graphics from photo references.

What software can open CGM?

CGM files can be opened with technical illustration viewers, LibreOffice, and WebCGM-enabled browsers.

Can I convert multiple CRW files to CGM at once?

Yes — upload several CRW images at the same time and they will all be converted to CGM in a single batch for convenient download.

Does the converter work on all devices?

Convertio works on any device with a web browser — desktop computers, laptops, tablets, and phones across all operating systems.

Does converting CRW to CGM affect quality?

Your CRW image data is processed carefully during conversion. The resulting CGM retains the maximum quality the target format can support.