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PEF to OXPS Converter

Change PEF images into OXPS documents — online and free

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Remote Processing

Server-side processing means PEF to OXPS conversion happens remotely. Your device just uploads and downloads — no strain on local hardware.

Easy Workflow

No technical knowledge required. The converter guides you through PEF to OXPS conversion in a few clicks — upload, select format, download.

Works Everywhere

Platform-independent conversion — process PEF to OXPS on any operating system or device through your web browser, without plugins or installs.

How to convert PEF to OXPS

1

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

2

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

3

Let the file convert and you can download your oxps 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
OXPS (Open XPS) is a fixed-layout document format standardized as ECMA-388 in June 2009, representing an evolution of Microsoft's original XPS specification. The format packages fixed-layout pages, fonts, images, and metadata in a ZIP-based Open Packaging Conventions container — the same packaging framework used by DOCX, XLSX, and other Office Open XML formats. Each page is described using an XML markup language that specifies paths, glyphs, images, and canvas elements with precise coordinates, producing documents that render identically regardless of the viewing device or printer. OXPS incorporated several changes from the original XPS: the use of JPEG XR for high dynamic range images, support for the Open Packaging Conventions 2nd edition, and alignment with the Ecma standardization process. Windows 8 and later generate OXPS (rather than XPS) when printing to the Microsoft XPS Document Writer. One advantage is standards-based document fidelity — as an Ecma standard, OXPS provides a vendor-neutral, fully specified format for documents that must look identical everywhere they are rendered, essential for legal filings, regulatory submissions, and archival records. The fixed-layout model is another strength: unlike reflowable formats, OXPS documents preserve exact page composition including precise glyph positioning and vector graphics. Built-in support in Windows and the .NET framework provides native viewing and creation capabilities without third-party software.
Developer: Ecma International
Initial release: June 2009

Frequently Asked Questions

Why should I convert PEF to OXPS?

PEF stores raw image data — converting to OXPS creates a portable document version that can be embedded in reports, presentations, or shared via email.

How do I open an OXPS file?

Compatible apps include Windows XPS Viewer, Microsoft Edge, and SumatraPDF.

Does converting PEF to OXPS affect quality?

The conversion preserves visual quality as closely as the target format allows. OXPS output maintains the essential detail from your original PEF image.

Can I convert multiple PEF files to OXPS at once?

Batch conversion is supported. Queue multiple PEF files and each one will be processed to OXPS independently, ready for bulk download.

Is PEF to OXPS conversion free?

The converter is free for everyday use. Convertio offers premium plans when you need extended limits or priority processing for PEF to OXPS.