Compress PDF Files
Compress PDF files online for free. Reduce file size while keeping quality. No signup, no watermarks.
Drag a PDF here or click to browse
Select a PDF to compress — processed in your browser
Processed entirely in your browser — never uploaded to a server. Files are deleted when you close this tab.
How to compress a PDF file
- 1
Upload your PDF
Drag your PDF into the upload zone or click to browse. Files up to 100 MB are supported.
- 2
Pick a compression level
Choose Low for the smallest file, Medium for balanced quality and size, or High to preserve maximum detail.
- 3
Download the compressed file
Click 'Compress PDF' and download your smaller file once processing finishes.
Why use this tool
- Three compression presets let you choose the right balance between file size and visual quality.
- Uses Ghostscript on secure, sandboxed servers to achieve genuine size reduction — not just metadata stripping.
- Files are encrypted in transit, processed in isolation, and deleted within one hour.
- Ideal for email attachments, upload limits, and meeting document-size requirements.