Smart DOCX Deep-Compressor (OLE & PDF Stream Optimizer)
Industry-first in-memory OLE compound scanner that compresses embedded PDFs, screenshots, and graphics down to exact target limits (<2MB, <500KB) while preserving 100% typography, layout, and visual crispness.
100% Private & Client-Side
Your files are processed directly on your computer or phone. They are never uploaded to any remote server or stored anywhere.
Upload or drag & drop your files
Files are processed directly in your browser. Supported: .docx, .doc
Browse DeviceRecompresses embedded photos and streams to stay strictly within your limit.
How to use Smart DOCX Deep-Compressor (OLE & PDF Stream Optimizer)
Upload or drop your .docx Word document.
Select your compression strength (Recommended, Extreme, or Light).
Click 'Compress Word Document' and download your optimized .docx file instantly.
Frequently Asked Questions
How does Hearthhammer compress Word documents without server uploads?
A .docx file is an Open Packaging XML archive containing document code and embedded media. Hearthhammer inspects the archive in your browser, downsamples heavy embedded photos, strips bloated metadata, and recompresses XML streams using maximum DEFLATE algorithms. Your confidential documents never leave your computer.
Will my text formatting, fonts, or tables get altered?
No. Your fonts, line spacing, tables, headers, and paragraph formatting remain 100% untouched because the underlying XML structure is preserved exactly as written.
Can I compress older .doc files?
Hearthhammer supports modern .docx documents (Word 2007 through Word 365). If you have an older binary .doc file, open it in Word or Google Docs, choose 'Save As .docx', and drop it here for instant client-side compression.
Is there a file size limit?
You can compress large documents up to several hundred megabytes directly on your device, limited only by your browser's local memory.
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