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PEF to SXW Converter

PEF to SXW — free online image-to-document conversion

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Effortless Process

A clean, minimal workflow — upload your PEF image, choose SXW, and download. No confusing options or hidden settings to worry about.

Server-Side Power

All conversion work happens in the cloud — no local CPU load, no memory pressure. Upload your PEF and get the SXW result without slowing down your machine.

Sharp Results

The converter retains maximum visual fidelity during PEF to SXW conversion — your photos maintain their sharpness, color accuracy, and detail.

How to convert PEF to SXW

1

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

2

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

3

Let the file convert and you can download your sxw 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
SXW is the word processing document format used by StarOffice 6.0 and OpenOffice.org 1.0, developed by Sun Microsystems and released in 2002. The format was one of the first mainstream office document formats to adopt an XML-based architecture, packaging document content, styles, metadata, and embedded media in a ZIP archive — a structural approach that directly influenced the later OpenDocument Format (ODF). The content.xml file describes the document body using XML elements for paragraphs, headings, lists, tables, footnotes, and inline formatting, while styles.xml defines the styling rules and meta.xml carries document properties. SXW represented a significant milestone in open-source office software, demonstrating that a non-proprietary XML format could handle the full range of word processing features including change tracking, indexes, cross-references, and complex page layouts. One advantage was transparency and openness — the XML structure made document content inspectable, transformable, and processable using standard tools, a sharp contrast to the opaque binary formats dominant at the time. The format's role as a technological precursor to the ODF standard is another historical significance: the OASIS OpenDocument Technical Committee used the OpenOffice.org XML format (including SXW) as the starting point for developing ODF 1.0. While SXW was superseded by ODT with OpenOffice.org 2.0 in 2005, existing SXW documents can be opened by LibreOffice, Apache OpenOffice, and document conversion tools.
Developer: Sun Microsystems
Initial release: 2002

Frequently Asked Questions

What are the reasons to convert PEF to SXW?

SXW documents make it easy to organize and share Pentax photos in a structured format — converting from PEF enables that without specialized image software.

What software can open SXW?

Open SXW files using LibreOffice Writer, OpenOffice Writer, and StarOffice (legacy).

Does converting PEF to SXW affect quality?

Your PEF image data is processed carefully during conversion. The resulting SXW retains the maximum quality the target format can support.

Is my PEF file safe during conversion?

Security is built in. Uploaded PEF images are removed immediately after conversion, and SXW files are automatically cleaned up within 24 hours.

How long are converted files stored?

Converted SXW files remain available for download for up to 24 hours, after which they are automatically deleted from Convertio servers.