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What is WMF?

Windows Metafile (WMF) is a vector and raster graphics format used by Microsoft Office for clip art and simple illustrations.

What is ORF?

Olympus Raw Format (ORF) contains raw sensor data from Olympus OM-D, PEN, and other Olympus digital cameras.

When Should You Use WMF vs ORF?

Use WMF When...

Reach for WMF when your priority is office documents, legacy vector graphics — its uncompromising quality ensures every detail is preserved.

Use ORF When...

Reach for ORF when your priority is olympus camera raw processing — its uncompromising quality ensures every detail is preserved.

WMF vs ORF: Key Differences

  • •WMF and ORF 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.
  • •How transparency is handled: ORF supports transparency, so alpha information is preserved during conversion.
  • •Storage footprint: 10KB to 5MB for WMF vs 15-40MB per photo for ORF.
  • •WMF is optimized for office documents, legacy vector graphics while ORF is designed for olympus camera raw processing — choose based on your specific workflow needs

Advantages of WMF

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

Advantages of ORF

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

Common Use Cases for WMF to ORF Conversion

  • Product photography for marketplaces
  • Digital art portfolios
  • Brochure and flyer design
  • Newsletter graphics
  • Video thumbnail creation
  • Certificate and badge design

Industry Applications

Content ManagementMedical ImagingReal Estate PhotographyGame DevelopmentScientific VisualizationE-learning Content

Best Practices for WMF to ORF Conversion

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

JPG vs PNG vs WebP: Which Image Format Should You Use?

Learn more about WMF and ORF formats in our detailed guide.

Troubleshooting WMF to ORF Conversion

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

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Convert WMF to ORF Online - Free & Fast

Convert WMF files to ORF online for free. High-quality conversion with no registration required.

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About WMF and ORF

WMF

WMF (WMF vectors) - Windows Metafile, vector format for Microsoft Office clip art. Best for office documents, legacy vector graphics.

ORF

ORF (Olympus ORF raw) - Olympus Raw Format, raw image from Olympus cameras. Ideal for olympus camera raw processing.

Format Comparison

CompressionLossless → Lossless
TransparencySupported
Use CaseConvert from office documents, legacy vector graphics to olympus camera raw processing
File Size~15-40MB per photo after conversion

FAQs

Is converting WMF to ORF free?

Yes, GoConvertFile offers free conversion of WMF to ORF for files up to 100MB. No registration required.

How long does it take to convert WMF to ORF?

Most WMF to ORF conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is ORF best used for?

ORF is ideal for olympus camera raw processing. Olympus Raw Format, raw image from Olympus cameras

What file size should I expect after converting WMF to ORF?

File size after WMF to ORF conversion depends on the content complexity and quality settings. Both formats use similar compression approaches so sizes are comparable.

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