Tool Categories

Compression Settings
Configure preset & quality
Document
Compression Level
Low
Print Ready
High Quality (150 DPI)
Est. 20% – 40%
Medium
Recommended
Standard (120 DPI)
Est. 40% – 65%
High
Max Savings
Smallest Size (90 DPI)
Est. 60% – 85%
Custom
Advanced
Manual Sliders
Est. Custom
100% In-Browser Privacy: Files are compressed directly on your device. Zero data is ever sent to external cloud servers.
Live Preview & Results
Visual page preview & size analytics

Drop your PDF file here

or click to select from your device. Multi-page documents, scans, and graphic reports supported.

How to Use PDF Compressor
  1. Select or Drop PDF :- Click "Upload PDF" or drag your file into the preview pane. You can also test with the "Try Sample Report" button.
  2. Choose Compression Preset :- Pick Medium (recommended for emails and web portals), High (maximum space savings), Low (print fidelity), or Custom.
  3. Compress Client-Side :- Click "Compress PDF Now". The engine renders and optimizes pages in-browser without sending files to any server.
  4. Download Optimized File :- Compare the file size reduction and click "Download Compressed PDF" to save your smaller document immediately.

Privacy & Security Guarantee: All document compression occurs entirely inside your web browser. No document pages or metadata are ever transmitted across the network or stored on external servers.

Frequently Asked Questions

How much smaller will my PDF get?
Scans, photos, and graphic-heavy documents routinely drop by 40% to 85%. Plain text documents with vector fonts are already near optimal size.
Which preset is best for email?
The Medium preset (120 DPI) offers the ideal balance: crisp, legible typography on screens while reducing file sizes by 40–65%.
Are my files uploaded anywhere?
Never. PDF compression runs using client-side WebAssembly and HTML5 Canvas in your own browser sandbox.
Why did my PDF not decrease in size?
If a document contains only vector paths and text without heavy raster images, it is already compact. The tool alerts you rather than degrading clarity.