PDF Compressor

Shrink your PDF file size for free without sacrificing quality. Choose compression level and download instantly. Runs entirely in your browser - no uploads.

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PDF Utility

Compress PDF

Reduce your PDF file size while maintaining optimal visual quality for email sharing and web uploads.

Local Processing
STEP 01

Upload PDF

Drag and drop your PDF document or click to select from your device.

STEP 02

Select Compression

Choose standard High, Recommended, or Low compression parameters.

STEP 03

Optimize Assets

Run the compression algorithms to minify and clean nested assets.

STEP 04

Download Optimized

Download your optimized PDF instantly. View the size reduction percentage saved.

Your Privacy Matters

All processing stays in your browser

No Server Uploads

Files never leave your device

Auto-Cleared

Data removed when you close

Capabilities

Document Optimization Features

File minification

Fast Client Optimization

Compress and minify your documents locally using high-performance WebAssembly engines.

Image Asset Downscaling

Downsamples high-resolution raster images dynamically while preserving text vector layouts.

Multiple Compression Levels

Choose Extreme, Recommended, or Low compression rates depending on your print/digital requirements.

Detailed Size Savings Reports

Displays precise comparisons showing original sizes, compressed sizes, and total saved ratio bytes.

100% Secure Client Sandbox

Your uploaded files stay completely local on your machine. All calculations and graphics processing happen inside your browser memory cache, ensuring maximum file privacy.

Support

Common Questions Answered

Quick help
Q1 How does the tool compress PDF files?
It downsizes high-resolution raster images, cleans duplicate embedded fonts, flattens redundant vector layer paths, and removes unused metadata references.
Q2 Will my compressed PDF lose visual text quality?
No. Our Recommended setting ensures that structural vector texts and typography remain completely sharp and uncompressed, affecting only raster photos and graphical fills.
Q3 Is there an upload file size limit?
No hard limit is enforced on our web interface. Since processing runs locally inside your browser memory cache, larger documents (200MB+) depend on your local hardware capacity.
Q4 Are my private documents stored on your servers?
Absolutely not. All file parsing, compression, and exporting occur client-side inside your browser sandbox. Your files are never uploaded to any remote host database.
Q5 Can I compress password-locked PDF files?
No. You must decrypt or unlock the file parameters first using our PDF Unlock tool before applying compression parameters to optimize its internal assets.