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Supports: CR2
This guide is for Canon shooters who want an editable, lossless copy of a RAW frame that opens everywhere — without keeping the proprietary CR2 as their only master. You will end up with a TIFF that holds the full demosaiced image and far more editing headroom than an 8-bit JPG or PNG.
.cr2 files onto the page or click "Add Files." You can queue several frames at once and they convert with the same settings. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark.Knowing what each format actually stores explains every decision in the steps above.
| Property | CR2 (Canon RAW) | TIFF |
|---|---|---|
| Type | RAW sensor capture (Bayer mosaic) | Demosaiced raster image |
| Container | TIFF-based, Canon-specific | Open TIFF 6.0 (Adobe, 1992) |
| First released | ~2004 (EOS 20D / 350D / 1D) | 1986 (Aldus) |
| Bit depth | 12-14-bit per channel (camera-dependent) | 8-bit or 16-bit per channel |
| Compression | Lossless JPEG | Uncompressed, LZW, DEFLATE, or PackBits (lossless); JPEG (lossy) |
| Editing freedom | Full RAW: white balance, highlight recovery, demosaic | Render-time choices baked in; pixel edits still lossless |
| Opens everywhere | No — needs Canon/RAW-aware software | Yes — near-universal |
| Best for | Permanent negative / master | Editable, archival, print-ready copy |
TIFF is the best non-RAW archival and editing target, but it is still a demosaiced render — not the original Bayer mosaic. The RAW-only freedoms (recovering several stops of highlight, fully re-doing white balance, swapping the demosaic algorithm) live in the CR2, not the TIFF. So treat the TIFF as an excellent working and print master, and keep the CR2 itself as your permanent negative. If a file fails to convert, it is usually a CR3 (Canon's newer format) renamed to .cr2, or a partial copy from a corrupted card — re-copy it from the camera and try again. If you only need a small shareable image rather than an editing master, convert the CR2 to JPG instead; if you shoot Nikon as well, the same lossless workflow applies to NEF to TIFF.
TIFF keeps the image lossless and supports 16 bits per channel, so shadows, highlights, and gradients survive heavy editing without banding. JPG is 8-bit and lossy, which is fine for sharing but loses headroom every time you re-save. Convert to TIFF when the file is going into Photoshop, a print lab, or a long-term archive; convert to JPG when you just need to email or post it.
It keeps the full demosaiced detail and pixel dimensions, and at 16-bit it preserves the tonal range your sensor recorded. What it does not keep is the RAW flexibility itself — the TIFF is the rendered result, so you cannot re-do the demosaic or recover clipped highlights the way you can from the CR2. For maximum fidelity, keep both: the CR2 as the negative and the TIFF as the editable master.
Both are lossless, so neither degrades the image. LZW has the widest compatibility — virtually every editor and print RIP reads it — so it is the safest archival choice. DEFLATE (ZIP) usually produces a slightly smaller file but is occasionally unsupported by older print software. In our testing, on a 24-megapixel Canon frame DEFLATE came out a few percent smaller than LZW, with no visible difference; we recommend LZW unless you control the downstream software and want the smaller file.
TIFF can carry EXIF, so shooting data such as shutter speed, aperture, ISO, and lens model is generally retained through the conversion. Note that the proprietary Canon maker-note fields (Canon-specific settings like the in-camera picture style) are not all standardized in TIFF, so some camera-specific tags may not survive. The core EXIF block does.
A CR2 stores a single mosaic of sensor values with lossless JPEG compression, while the TIFF stores three full color channels per pixel after demosaicing — roughly three times the data before compression. Even lossless LZW or DEFLATE cannot shrink photographic detail much, so a TIFF master is routinely 60-100 MB for a full-frame image. That size is the cost of a lossless, editable, universally readable file.
TIFF has been a cross-platform standard since Aldus released it in 1986, and the current TIFF 6.0 specification dates to 1992, so support is deep and stable. Photoshop, Lightroom, GIMP, Affinity Photo, macOS Preview, and professional layout tools like InDesign all open it. For the broadest compatibility with older or specialized print software, use LZW compression rather than DEFLATE.