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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 BPG?

Better Portable Graphics (BPG) is a modern image format based on HEVC video compression, offering excellent compression efficiency.

When Should You Use WMF vs BPG?

Use WMF When...

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

Use BPG When...

Reach for BPG when your priority is web images with superior compression — its efficient compression makes sharing fast and storage minimal.

WMF vs BPG: Key Differences

  • •WMF and BPG diverge on compression: lossless compression for the source, lossy compression for the target.
  • •The switch from lossless compression to lossy compression means you gain significant space savings while accepting minor quality trade-offs.
  • •Alpha channel support: BPG handles transparency, so semi-transparent pixels from the source will be lost.
  • •File sizes: WMF files typically range 10KB to 5MB and BPG files 30-50% smaller than JPEG at same quality.
  • •Use case fit: WMF targets office documents, legacy vector graphics and BPG targets web images with superior compression — your choice depends on which workflow stage you are serving.

Advantages of WMF

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

Advantages of BPG

  • ✓The lossy nature of BPG means file sizes stay reasonable while handling Web images with superior compression efficiently.
  • ✓From mobile devices to enterprise servers, BPG is recognized and supported everywhere.
  • ✓Storage and bandwidth costs drop significantly when using BPG thanks to its efficient compression.
  • ✓BPG is a first-class citizen in all major software ecosystems, from creative suites to development environments.

Common Use Cases for WMF to BPG Conversion

  • Graphic design projects
  • E-commerce product images
  • Email marketing campaigns
  • Presentation graphics
  • Blog and article illustrations
  • Mobile app UI assets

Industry Applications

Print PublishingE-commerceDigital ArtUI/UX DesignAdvertisingBrand Management

Best Practices for WMF to BPG Conversion

  • →Before converting WMF to BPG, 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 BPG — you cannot recover detail lost during lossy compression
  • →Check the color profile: WMF images may use a wider gamut than BPG 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 BPG formats in our detailed guide.

Troubleshooting WMF to BPG Conversion

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

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About WMF and BPG

WMF

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

BPG

BPG (BPG images) - Better Portable Graphics, high-efficiency image codec. Ideal for web images with superior compression.

Format Comparison

CompressionLossless → Lossy
TransparencyN/A
Use CaseConvert from office documents, legacy vector graphics to web images with superior compression
File Size~30-50% smaller than JPEG at same quality after conversion

FAQs

Is converting WMF to BPG free?

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

How long does it take to convert WMF to BPG?

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

What is BPG best used for?

BPG is ideal for web images with superior compression. Better Portable Graphics, high-efficiency image codec

Does converting WMF to BPG lose quality?

Yes, converting WMF to BPG uses lossy compression, which reduces file size by discarding some visual data. Set quality to 85-95% for a good balance of quality and file size.

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

BPG files are typically 50-80% smaller than WMF files because BPG uses efficient lossy compression. The exact reduction depends on quality settings.

Will transparency be preserved when converting WMF to BPG?

No, BPG does not support transparency. Any transparent areas in your WMF will be filled with a solid color (usually white) during conversion. Use PNG or WebP if transparency is needed.

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