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A .crw file is a Canon Raw digital camera raw image. Raw images contain uncompressed, unprocessed data directly from a digital camera's sensor. The extra data allows photographers to make higher-quality edits to a digital photo by adjusting brightness, contrast, and color.

CRW files can be viewed by many image viewers, as well as the software included with Canon digital cameras. Adjustments to CRW images can be made using image editing software like Adobe Photoshop. CRW files can be converted into other, more widely-compatible image formats to share with other people. Saving one as a JPEG (.jpg) will use lossy compression to make the file size much smaller, with a little image quality loss. Lossless image formats, like TIFF (.tif) and PNG (.png), will preserve the image quality at a larger file size.

About File Helper

File Helper is a free web-based file utility that can open Canon Raw Image files and over 150 other file formats directly in your web browser. It displays file properties, including metadata, and image EXIF data, along with information about the corresponding file type. File Helper can also view and convert images to several common formats. Have an unknown file or a file without an extension? No problem — File Helper can identify over 15,000 file types.

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