CRW to PDF
Share an older Canon CRW image as a one-page PDF. LibRaw develops it to 8-bit sRGB, while future exposure or white-balance edits need the CRW.
Format Comparison & Technical Specifications
| Specification | CRW | |
|---|---|---|
| MIME Type | - | application/pdf |
| Type | - | document container |
| Compression | - | Flate / JPEG / JBIG2 / CCITT |
| Standard Specification | - | ISO 32000-2:2020 |
| Magic Bytes Header | - | 25 50 44 46 (%PDF) |
Format Overview & Applications
A historical EOS image may need to be cited in a report or collection list; the PDF is the easy-view companion and the CRW remains the source for further development.
Technical Specifications & Codec Breakdown
LibRaw opens the CRW and develops its mosaic using AHD demosaicing, camera white balance, camera-matrix color, automatic orientation, and 8-bit sRGB pixels.
OS & Browser Compatibility
Canon raw software or another CRW-capable editor can revisit the capture; a PDF is more practical for a written assessment that only needs the developed look.
Useful info
Render the CRW in the same Canon-aware application used by the rest of the project if consistent camera styling matters; this PDF path uses LibRaw defaults.
Format Comparison & Technical Specifications
A 3072×2048 Canon CRW catalog image becomes a 20.5×13.7 inch page at 150 dpi.
Frequently Asked Questions
Does the CRW’s raw precision survive?
The demosaiced image is emitted at 8 bits per sRGB channel before it is embedded in the PDF.
Why keep the CRW after conversion?
It is still needed for new raw development choices; the PDF records only the converted view.
Which Canon file is useful if this image needs retouching later?
Use the CRW for another raw development pass; the PDF is only the developed view.