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 FITS?

Flexible Image Transport System (FITS) is a scientific data format used primarily in astronomy for storing and transmitting images and datasets.

When Should You Use WMF vs FITS?

WMF vs FITS: Key Differences

• •WMF and FITS diverge on compression: lossless compression for the source, lossless compression for the target.
• •Since both WMF and FITS use lossless compression, the quality characteristics are comparable — differences in file size come down to how efficiently each format implements compression.
• •Transparency: N/A - Scientific data format
• •File sizes: WMF files typically range 10KB to 5MB and FITS files Varies from 1MB to several GB.
• •Use case fit: WMF targets office documents, legacy vector graphics and FITS targets astronomy, scientific imaging, research — your choice depends on which workflow stage you are serving.

Advantages of WMF

• ✓At its core, WMF relies on lossless encoding — a design choice that makes it perfect for Office documents, legacy vector graphics.
• ✓You won't run into compatibility issues with WMF — it's a universal standard across platforms.
• ✓File size management with WMF: larger files guaranteed to match the original exactly.
• ✓Every major application in the Office documents, legacy vector graphics space supports WMF natively.

Advantages of FITS

• ✓FITS uses lossless compression tailored for Astronomy, scientific imaging, research.
• ✓FITS is supported natively on virtually every device, browser, and operating system.
• ✓FITS files are bit-for-bit perfect, preserving every pixel and sample for professional work.
• ✓FITS integrates seamlessly with all major creative tools and workflows.

Common Use Cases for WMF to FITS Conversion

• Print materials and publications
• Social media posts and ads
• Digital photography and editing
• Graphic design projects
• E-commerce product images
• Email marketing campaigns

Industry Applications

Best Practices for WMF to FITS Conversion

• →When converting WMF to FITS, check whether FITS supports transparency — if not, your transparent areas will be filled with a solid color
• →Use FITS for maximum quality archival and WMF for lossless workflows
• →Optimize images for web to reduce page load times — tools like our converter let you adjust quality settings before conversion
• →Maintain original aspect ratio to avoid distortion during conversion
• →Always keep a backup of your original files before converting
• →Choose the appropriate quality settings for your specific use case

Related Article

Troubleshooting WMF to FITS Conversion

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

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