PEF to CUR Converter

Free PEF to CUR converter — process images online

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Speed Matters

No long waits. The converter processes PEF images quickly, delivering CUR results in seconds — even during peak usage periods.

Image Integrity

Convertio optimizes the PEF to CUR pipeline for quality — the resulting file reflects the full detail captured in your original image.

Effortless Process

Upload your PEF, pick CUR as the output, and click Convert — the streamlined interface makes the entire process straightforward for anyone.

How to convert PEF to CUR

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose cur or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your cur file right afterwards

About formats

PEF (Pentax Electronic Format) is the proprietary RAW image format used by Pentax digital SLR and mirrorless cameras, introduced in 2003 with the *ist D — Pentax's first digital SLR — and continuing through the current K-mount and medium-format 645 lineup. PEF files capture the unprocessed 12-bit or 14-bit readout from the camera's CMOS sensor in its native Bayer mosaic pattern, stored in a TIFF-based container with Huffman-coded lossless compression. The format includes embedded JPEG previews at multiple sizes, comprehensive EXIF metadata, and Pentax-specific MakerNote tags that record Custom Image mode settings, Shake Reduction (SR) gyroscope data, lens identification from the K-mount electronic interface, and the camera's Auto Level correction parameters. Pentax cameras are notable for their weather-sealed construction and compatibility with the vast legacy of K-mount lenses dating back to 1975, and PEF files from these bodies can include manual lens metadata entered through the camera's menu system. One advantage is the preservation of Pentax's distinctive color rendering — the brand's Custom Image modes (Bright, Natural, Reversal Film, Bleach Bypass, etc.) are stored as metadata rather than applied to the raw data, allowing photographers to explore different rendering interpretations during post-processing while the original sensor capture remains untouched. The format's longevity is another strength: PEF files from every Pentax DSLR are supported by Adobe Lightroom, Capture One, dcraw, RawTherapee, Pentax's own Digital Camera Utility, and other modern RAW processors.
Developer: Pentax
Initial release: 2003
CUR is the cursor image format for Microsoft Windows), structurally nearly identical to the ICO (icon) format but with the addition of a hotspot coordinate that identifies the precise pixel position where mouse clicks register. Introduced with early Windows versions, CUR files use the same container structure as ICO: a directory header listing one or more image entries, each specifying dimensions and color depth, followed by the pixel data for each variant. Like ICO, a single CUR file can contain multiple images at different sizes and color depths, allowing Windows to select the most appropriate cursor image for the current display resolution and color settings. Image data within CUR files can be stored as BMP pixel arrays (for legacy compatibility) or as embedded PNG images (supported since Windows Vista) for alpha-blended cursors with smooth edges. The hotspot coordinate — the distinguishing feature separating CUR from ICO — is stored as an X,Y pair in the directory entry header, typically pointing to the tip of an arrow or the center of a crosshair. One advantage is multi-resolution packaging: a single CUR file provides appropriate cursor imagery across display densities from standard DPI to high-DPI screens. Native Windows integration is another strength — CUR files are loaded directly by the operating system for mouse cursor) display without any third-party software. CUR files are used by application developers and theme creators to customize the pointing experience across Windows environments.
Developer: Microsoft
Initial release: 1987

Frequently Asked Questions

What are the reasons to convert PEF to CUR?

PEF files from Pentax DSLRs store rich tonal data that requires specialized tools — converting to CUR makes them accessible on any device or platform.

What programs open CUR files?

You can open CUR with Windows cursor editor, IrfanView, RealWorld Cursor Editor, and GIMP.

Is my PEF file safe during conversion?

Yes — uploaded PEF files are deleted immediately after conversion, and the CUR output is removed from servers within 24 hours for your privacy.

Do I need to install software?

No — everything happens in your web browser. There is nothing to download or install for PEF to CUR conversion on Convertio.

How long are converted files stored?

Convertio keeps converted files for up to 24 hours. You can download your CUR anytime within that window — files are purged after.