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What is CGM?

Computer Graphics Metafile (CGM) is a vector and raster graphics format for technical illustrations and engineering diagrams.

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 CGM vs FITS?

Use CGM When...

Reach for CGM when your priority is technical illustrations, engineering diagrams — its uncompromising quality ensures every detail is preserved.

Use FITS When...

Reach for FITS when your priority is astronomy, scientific imaging, research — its uncompromising quality ensures every detail is preserved.

CGM vs FITS: Key Differences

  • •The core technical difference: CGM relies on lossless compression whereas FITS uses lossless compression.
  • •Neither format changes compression philosophy — both are lossless compression — so any size differences are due to encoding efficiency, not a shift in quality approach.
  • •How transparency is handled: FITS supports transparency, so alpha information is preserved during conversion.
  • •CGM files are typically Compact for vector drawings while FITS files range Varies from 1MB to several GB
  • •CGM is optimized for technical illustrations, engineering diagrams while FITS is designed for astronomy, scientific imaging, research — choose based on your specific workflow needs

Advantages of CGM

  • ✓CGM compresses data using lossless methods, keeping file sizes manageable for Technical illustrations, engineering diagrams.
  • ✓Industry-wide support means CGM files open anywhere — from legacy systems to the latest devices.
  • ✓Lossless quality makes CGM the gold standard for archival and master copies.
  • ✓From professional software to open-source alternatives, CGM works out of the box.

Advantages of FITS

  • ✓FITS applies lossless compression specifically calibrated for Astronomy, scientific imaging, research.
  • ✓FITS enjoys broad native support across operating systems, browsers, and creative tools alike.
  • ✓FITS guarantees every bit of the original data survives — no approximations, no shortcuts.
  • ✓You will find FITS support built into virtually every tool that handles Astronomy, scientific imaging, research — no plugins or converters needed.

Common Use Cases for CGM to FITS 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 CGM to FITS Conversion

  • →When converting CGM 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 CGM 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

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

Learn more about CGM and FITS formats in our detailed guide.

Troubleshooting CGM to FITS Conversion

  • !Converting CGM to FITS gives blurry output → increase the quality setting before conversion
  • !Colors look different in FITS than CGM → 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 CGM turned white in FITS → FITS may not support transparency

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Convert CGM to FITS Online - Free & Fast

Convert CGM files to FITS online for free. High-quality conversion with no registration required.

Image Converter

Upload or enter a URL to convert CGM to FITS instantly

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About CGM and FITS

CGM

CGM (CGM graphics) - Computer Graphics Metafile, vector/raster hybrid graphics. Best for technical illustrations, engineering diagrams.

FITS

FITS (FITS data) - Flexible Image Transport System, scientific data format. Ideal for astronomy, scientific imaging, research.

Format Comparison

CompressionLossless → Lossless
TransparencySupported
Use CaseConvert from technical illustrations, engineering diagrams to astronomy, scientific imaging, research
File Size~Varies from 1MB to several GB after conversion

FAQs

Is converting CGM to FITS free?

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

How long does it take to convert CGM to FITS?

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

What is FITS best used for?

FITS is ideal for astronomy, scientific imaging, research. Flexible Image Transport System, scientific data format

What file size should I expect after converting CGM to FITS?

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

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