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What is FITS?

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

What is PCX?

PCX (PC Paintbrush) is a legacy raster image format from the early days of DOS, originally created for ZSoft's PC Paintbrush.

When Should You Use FITS vs PCX?

Use FITS When...

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

Use PCX When...

Reach for PCX when your priority is legacy graphics, retro computing — its uncompromising quality ensures every detail is preserved.

FITS vs PCX: Key Differences

  • •The core technical difference: FITS relies on lossless compression whereas PCX uses lossless compression.
  • •Both formats share lossless compression, so quality behavior is similar across the two — file size differences come from algorithm efficiency rather than compression philosophy.
  • •Alpha channel support: PCX lacks transparency support.
  • •File sizes: FITS files typically range Varies from 1MB to several GB and PCX files Moderate, similar to uncompressed formats.
  • •FITS is optimized for astronomy, scientific imaging, research while PCX is designed for legacy graphics, retro computing — choose based on your specific workflow needs

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.

Advantages of PCX

  • ✓PCX uses lossless compression tailored for Legacy graphics, retro computing.
  • ✓PCX is supported natively on virtually every device, browser, and operating system.
  • ✓PCX files are bit-for-bit perfect, preserving every pixel and sample for professional work.
  • ✓PCX integrates seamlessly with all major creative tools and workflows.

Common Use Cases for FITS to PCX Conversion

  • Email marketing campaigns
  • Presentation graphics
  • Blog and article illustrations
  • Mobile app UI assets
  • Product photography for marketplaces
  • Digital art portfolios

Industry Applications

Digital ArtUI/UX DesignAdvertisingBrand ManagementContent ManagementMedical Imaging

Best Practices for FITS to PCX Conversion

  • →When converting FITS to PCX, check whether PCX supports transparency — if not, your transparent areas will be filled with a solid color
  • →Use PCX for maximum quality archival and FITS 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 FITS and PCX formats in our detailed guide.

Troubleshooting FITS to PCX Conversion

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

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Convert FITS to PCX Online - Free & Fast

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

Image Converter

Upload or enter a URL to convert FITS to PCX instantly

Click to upload or drag & drop FITS file

or paste from clipboard

.fits,.FITS (max 100MB)

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About FITS and PCX

FITS

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

PCX

PCX (PCX images) - PC Paintbrush, legacy DOS image format. Ideal for legacy graphics, retro computing.

Format Comparison

CompressionLossless → Lossless
TransparencySupported
Use CaseConvert from astronomy, scientific imaging, research to legacy graphics, retro computing
File Size~Moderate, similar to uncompressed formats after conversion

FAQs

Is converting FITS to PCX free?

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

How long does it take to convert FITS to PCX?

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

What is PCX best used for?

PCX is ideal for legacy graphics, retro computing. PC Paintbrush, legacy DOS image format

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

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

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