Canon RAW 1.0

Writable

image

The .CRW file format (Canon RAW version 1) is a digital photography RAW format created by Canon.

Identify it

Extensions	`.crw`
MIME types	`image/x-canon-crw`
Signatures	`49491a0000004845415043434452` at byte 0 (Canon RAW 1) `49491a00000048454150434344520200` at byte 0
PRONOM	`fmt/593`
Wikidata	`Q3651247`
Library of Congress	`fdd000241`

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Open it

libexiv2Open sourcereads and writes · GNU General Public License, version 2.0 or later
AbydosOpen sourcereads · GNU Lesser General Public License
ConverseenOpen sourcereads · GNU General Public License, version 3.0
ExifToolOpen sourcereads · Artistic License / GNU General Public License, version 1.0 or later
ImageMagickOpen sourcereads · ImageMagick License
LibRawOpen sourcereads · Common Development and Distribution License version 1.0 / GNU Lesser General Public License, version 2.1
PhotoRecOpen sourcereads · GNU General Public License
F-SpotOpen sourcereads · GNU General Public License / MIT License
Canon EOS 10Dwrites
Canon EOS 300Dwrites
Canon EOS 350Dwrites
Canon EOS D30writes
Canon EOS D60writes
Canon EOS-1Dwrites
Canon PowerShot A50writes
Canon PowerShot G1writes
Canon PowerShot G2writes
Canon PowerShot G3writes
Canon PowerShot G5writes
Canon PowerShot G6writes
Canon PowerShot Pro1writes
Canon PowerShot Pro70writes
Canon PowerShot S30writes
Canon PowerShot S40writes
Canon PowerShot S45writes
Canon PowerShot S50writes
Canon PowerShot S60writes
Canon PowerShot S70writes
Zoner Photo Studioreads and writes
ACD FotoCanvas Litereads
ACDSee 5reads
Adobe Camera Rawreads
Adobe Photoshop Elements 3.0reads
FastStone Image Viewer 5.2reads
Microsoft Photosreads · Microsoft end-user license agreement
PaintShop Photo Pro X3reads
PaintShop Pro X6 Ultimatereads
Photorecoveryreads
Q122522973reads
Q1936840reads

And 7 more in the JSON record.

Convert it

To	With	Fidelity	Command and losses
Portable Network Graphics	ImageMagick	Lossless	`convert in.crw out.png` Pixels kept; some metadata, colour profiles or layers may be dropped.
Tagged Image File Format	ImageMagick	Lossless	`convert in.crw out.tif` Pixels kept; some metadata, colour profiles or layers may be dropped.
GIF 89a	ImageMagick	Lossy	`convert in.crw out.gif` Reduced to 256 colours.
JPEG File Interchange Format 1.02	ImageMagick	Lossy	`convert in.crw out.jpg` Lossy compression.
WebP	ImageMagick	Lossy	`convert in.crw out.webp` Lossy compression.

Sources

From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

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