Drop PDF to Compress
Locally re-encode and optimize PDF object streams.
How to Compress PDF Files
01
Upload Document
Drag and drop your PDF file into the dropzone.
02
Optimize Streams
Click compress. We restructure internal PDF data streams.
03
Download Result
Instantly download your compressed PDF.
Why Use Our PDF Compressor?
Is the visual quality affected?
No. We use PDF 1.5 Object Stream compression — lossless for the visual layer. Text and images are untouched.
Are my documents private?
Absolutely. All compression happens in your browser. Your files are never uploaded to any server.
Is there a size or time limit?
100% free, no limits. Compress as many PDFs as you want.
Compress PDF Online for Free - Reduce PDF File Size
Shrink large PDF documents quickly and securely without compromising quality. Perfect for email attachments.
✓How to use it
1
Select PDF
Drag and drop your large PDF file into the dropzone.
2
Choose Compression Level
Select the desired compression ratio to optimize file size.
3
Download File
Instantly download your optimized, smaller PDF document.
★Key Features
- •Lossless Optimization: We reduce file size while preserving text sharpness and image quality.
- •Zero Server Uploads: PDF processing happens completely on your device.
- •Lightning Fast: Powered by native browser technologies for instant compression.