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What is PSB?

Photoshop Big (PSB) is Adobe's large document format, extending PSD to support images up to 300,000 pixels and 4 exabytes in size.

What is X3F?

Sigma Raw (X3F) contains raw sensor data from Sigma cameras using the unique Foveon X3 sensor technology.

When Should You Use PSB vs X3F?

Use PSB When...

Reach for PSB when your priority is large-format graphic design, billboard artwork — its uncompromising quality ensures every detail is preserved.

Use X3F When...

Reach for X3F when your priority is sigma/foveon camera raw processing — its uncompromising quality ensures every detail is preserved.

PSB vs X3F: Key Differences

  • •PSB uses lossless compression while X3F uses lossless compression — both take the same approach to file size management.
  • •Neither format changes compression philosophy — both are lossless compression — so any size differences are due to encoding efficiency, not a shift in quality approach.
  • •Transparency: N/A
  • •PSB files are typically Can exceed 2GB while X3F files range 25-60MB per photo
  • •Use case fit: PSB targets large-format graphic design, billboard artwork and X3F targets sigma/foveon camera raw processing — your choice depends on which workflow stage you are serving.

Advantages of PSB

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

Advantages of X3F

  • ✓X3F applies lossless compression specifically calibrated for Sigma/Foveon camera raw processing.
  • ✓X3F enjoys broad native support across operating systems, browsers, and creative tools alike.
  • ✓X3F guarantees every bit of the original data survives — no approximations, no shortcuts.
  • ✓You will find X3F support built into virtually every tool that handles Sigma/Foveon camera raw processing — no plugins or converters needed.

Common Use Cases for PSB to X3F Conversion

  • Digital photography and editing
  • Graphic design projects
  • E-commerce product images
  • Email marketing campaigns
  • Presentation graphics
  • Blog and article illustrations

Industry Applications

Social Media MarketingPrint PublishingE-commerceDigital ArtUI/UX DesignAdvertising

Best Practices for PSB to X3F Conversion

  • →When converting PSB to X3F, check whether X3F supports transparency — if not, your transparent areas will be filled with a solid color
  • →Use X3F for maximum quality archival and PSB 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 PSB and X3F formats in our detailed guide.

Troubleshooting PSB to X3F Conversion

  • !X3F shows visible compression artifacts → lower the compression level or switch to a lossless variant
  • !The converted X3F image looks washed out → the source PSB likely uses a wider color space than X3F supports
  • !X3F file is much larger than expected → check if the conversion preserved an unnecessarily high resolution
  • !Text in the converted X3F looks fuzzy → text-heavy images benefit from higher quality settings or a different output format

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Convert PSB to X3F Online - Free & Fast

Convert PSB files to X3F online for free. High-quality conversion with no registration required.

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About PSB and X3F

PSB

PSB (PSB large docs) - Photoshop Big, large document format for 2GB+ PSD files. Best for large-format graphic design, billboard artwork.

X3F

X3F (Sigma X3F raw) - Sigma Raw, Foveon X3 sensor raw format. Ideal for sigma/foveon camera raw processing.

Format Comparison

CompressionLossless → Lossless
TransparencySupported
Use CaseConvert from large-format graphic design, billboard artwork to sigma/foveon camera raw processing
File Size~25-60MB per photo after conversion

FAQs

Is converting PSB to X3F free?

Yes, GoConvertFile offers free conversion of PSB to X3F for files up to 100MB. No registration required.

How long does it take to convert PSB to X3F?

Most PSB to X3F conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is X3F best used for?

X3F is ideal for sigma/foveon camera raw processing. Sigma Raw, Foveon X3 sensor raw format

What file size should I expect after converting PSB to X3F?

File size after PSB to X3F conversion depends on the content complexity and quality settings. Both formats use similar compression approaches so sizes are comparable.

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