How to Use Compress PDF
- Step 1: Upload your PDF file.
- Step 2: Select the compression level (Standard or High).
- Step 3: Click 'Compress PDF' to start local processing.
- Step 4: Download your optimized, smaller PDF file.
Key Features
- Advanced font sub-setting for smaller sizes.
- Image down-sampling for web optimization.
- 100% Secure: Files stay in your browser.
- Real-time file size comparison.
Frequently Asked Questions
Will my PDF lose quality?
Our standard compression is virtually lossless. Text remains perfectly crisp, and images are optimized for web viewing.
How much size can I save?
Typically, scanned documents can be reduced by 50-80%.
Related Privacy Tools
🔒 Privacy & Security by Design
Dumkera is built for the security-conscious professional. By using WebAssembly (WASM) and ONNX Runtime, we move the processing from our servers to your machine.
Traditional online tools require you to upload your sensitive PDFs, private photos, and videos to their cloud.
On Dumkera, your files never leave your device. Open your browser's Developer Tools (Network Tab) and verify it for yourself.
We are GDPR compliant, CCPA compliant, and enterprise-ready.