What is PEF?

Pentax Electronic Format (PEF) contains raw sensor data from Pentax digital SLR and mirrorless cameras.

What is CUR?

Windows Cursor (CUR) is the mouse cursor format for Windows, supporting static and animated pointers with hotspot definitions.

When Should You Use PEF vs CUR?

PEF vs CUR: Key Differences

• •PEF and CUR diverge on compression: lossless compression for the source, lossless compression for the target.
• •Both formats share lossless compression, so quality behavior is similar across the two — file size differences come from algorithm efficiency rather than compression philosophy.
• •Transparency: Transparency supported via alpha channel
• •PEF files are typically 15-45MB per photo while CUR files range Very small, typically under 50KB
• •PEF is optimized for pentax camera post-processing while CUR is designed for windows ui cursors, mouse pointer graphics — choose based on your specific workflow needs

Advantages of PEF

• ✓PEF uses lossless compression tailored for Pentax camera post-processing.
• ✓PEF is supported natively on virtually every device, browser, and operating system.
• ✓PEF files are bit-for-bit perfect, preserving every pixel and sample for professional work.
• ✓PEF integrates seamlessly with all major creative tools and workflows.

Advantages of CUR

• ✓The lossless nature of CUR means file sizes stay reasonable while handling Windows UI cursors, mouse pointer graphics efficiently.
• ✓From mobile devices to enterprise servers, CUR is recognized and supported everywhere.
• ✓The trade-off for CUR's perfection is larger files — but for archival work, it is worth every megabyte.
• ✓CUR is a first-class citizen in all major software ecosystems, from creative suites to development environments.

Common Use Cases for PEF to CUR Conversion

• Brochure and flyer design
• Newsletter graphics
• Video thumbnail creation
• Certificate and badge design
• Websites and online content
• Print materials and publications

Industry Applications

Best Practices for PEF to CUR Conversion

• →Before converting PEF to CUR, 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 CUR — you cannot recover detail lost during lossy compression
• →Check the color profile: PEF images may use a wider gamut than CUR 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

Related Article

Troubleshooting PEF to CUR Conversion

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

Related Image Converters

All Image Formats

More Image tools

Related Tools