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Compress PDF
Shrink large PDF documents in seconds right in your browser. Choose your preferred compression balance without uploading your sensitive data to remote servers.
Drop your PDF here to compress
PDF documents up to 100 MB. Instant in-browser optimization.
How to compress pdf online
1
Select your PDF
Upload the document you want to compress from your desktop, phone, or drag it into the box.
2
Choose compression level
Pick Extreme for maximum size reduction, Recommended for daily documents, or Less for crisp lossless structure.
3
Download compressed file
PaperPilot compresses the document locally in your browser. Save the reduced PDF immediately.
Supported Formats: Standard PDF (.pdf) documents up to 100 MBPrivacy: Local in-memory browser execution
Troubleshooting & Helpful Tips
- If compression hangs on a huge file (>100 MB), consider splitting the document first into smaller chapters.
- Make sure your browser tab has sufficient memory when processing PDFs with hundreds of high-resolution images.
- Corrupted or non-standard PDF formats should be opened in a PDF viewer and re-saved prior to compression.