What is CPT?

Corel PHOTO-PAINT (CPT) is the native project format for Corel PHOTO-PAINT, preserving layers, masks, and editing history.

What is SRW?

Samsung Raw (SRW) contains raw sensor data from Samsung NX series cameras.

When Should You Use CPT vs SRW?

CPT vs SRW: Key Differences

• •CPT uses lossless compression while SRW uses lossless compression — both take the same approach to file size management.
• •Neither format changes compression philosophy — both are lossless compression — so any size differences are due to encoding efficiency, not a shift in quality approach.
• •How transparency is handled: SRW supports transparency, so alpha information is preserved during conversion.
• •File sizes: CPT files typically range Large due to layer data and SRW files 15-40MB per photo.
• •CPT is optimized for corel image editing, photo manipulation while SRW is designed for samsung camera raw post-processing — choose based on your specific workflow needs

Advantages of CPT

• ✓CPT uses lossless compression tailored for Corel image editing, photo manipulation.
• ✓CPT is supported natively on virtually every device, browser, and operating system.
• ✓CPT files are bit-for-bit perfect, preserving every pixel and sample for professional work.
• ✓CPT integrates seamlessly with all major photo editing tools and workflows.

Advantages of SRW

• ✓SRW compresses data using lossless methods, keeping file sizes manageable for Samsung camera raw post-processing.
• ✓Industry-wide support means SRW files open anywhere — from legacy systems to the latest devices.
• ✓Lossless quality makes SRW the gold standard for archival and master copies.
• ✓From professional software to open-source alternatives, SRW works out of the box.

Common Use Cases for CPT to SRW Conversion

• Video thumbnail creation
• Certificate and badge design
• Websites and online content
• Print materials and publications
• Social media posts and ads
• Digital photography and editing

Industry Applications

Best Practices for CPT to SRW Conversion

• →Before converting CPT to SRW, decide whether you need maximum quality or smallest file size — this determines which format truly fits
• →Save a master copy in a lossless format before converting to SRW — you cannot recover detail lost during lossy compression
• →Check the color profile: CPT images may use a wider gamut than SRW supports, causing a visible shift after conversion
• →Resize images to the final display dimensions before converting — this avoids unnecessary processing of oversized files
• →Run a single test conversion first to verify quality meets your standards
• →Strip unnecessary metadata to reduce file size after conversion

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Troubleshooting CPT to SRW Conversion

• !Converting CPT to SRW gives blurry output → increase the quality setting before conversion
• !Colors look different in SRW than CPT → check color profile mismatch (sRGB vs Adobe RGB)
• !File size changed more than expected → SRW uses different compression, file size differences of 2-5x are normal
• !Transparent areas in CPT turned white in SRW → SRW may not support transparency

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