How does DOCX compression work?

DOCX files are ZIP archives containing images and XML. Our tool extracts the archive, re-encodes embedded images at optimized quality levels, removes unnecessary metadata, and repackages the document.

Will the document formatting change?

Text formatting, layout, and structure remain intact. Only embedded images are re-encoded and metadata is cleaned. The document will look the same when opened.

How much can I reduce DOCX file size?

Documents with many images can be reduced by 50-80%. Text-only documents see smaller reductions, mainly from metadata removal.

Is this DOCX compressor free?

Yes, completely free with no limits. Process as many DOCX files as you need, no registration required.

Compress DOCX

Reduce Word document file size by optimizing embedded images and removing metadata.

或將檔案拖放到這裡

Maximum file size: 100MB per file

About DOCX Compression

DOCX files are ZIP archives containing XML, images, and metadata. Our tool opens the DOCX archive, optimizes embedded images by re-encoding them at appropriate quality levels, removes unnecessary metadata, and repackages the document. All processing happens in your browser — your documents never leave your device.

Compress DOCX

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About DOCX Compression