PDF Compressor
Reduce PDF file size while maintaining readability and vector clarity. 100% private in-browser compression.
FastCompress in seconds
PrivateAll processing in browser
Free to useNo sign-up required
Drag & drop your PDF file here
or click to browse from your device
Supports PDF files only • Max file size 100MB
Compression Settings
Optimization Options
Realistic Compression Promise
PDFs containing pre-compressed raster photos (such as scanned documents) cannot be reduced without downsampling image pixels. We never promise inflated or artificial compression ratios.
How ecsot PDF Compressor Works
1
Upload PDF
Choose or drag and drop any PDF document from your device.
2
Choose Level
Select Recommended, Extreme, or Low compression according to your fidelity requirements.
3
On-Device Compression
Your browser restructures streams and strips excess metadata with zero remote transfer.
4
Download Output
Review exact before-and-after size metrics and save the optimized document.
Tips for Best PDF Compression
- •Text & Invoices Compress Best: Documents with vector typography, tables, and invoices achieve massive reductions from cross-reference stream compaction.
- •Strip Unused Metadata: Enable 'Remove Document Metadata' to wipe author info, software signatures, and edit timestamps.
- •Scanned Photos & Image PDFs: PDFs that consist purely of pre-compressed JPEG page scans cannot be reduced without downscaling resolution.
- •100% Private in Browser: All operations execute in your browser sandbox using WebAssembly and client-side memory.
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