Compress PDF
Shrink PDF file size for easier sharing.
Compression level
About Compress PDF
Compress a PDF to reduce file size for email, uploads, or storage. Choose a compression level that balances quality and size, then download the smaller file.
Browser-based compression means large documents are not uploaded to a third-party server.
Frequently asked questions
Is Compress PDF free?
Yes. Compress PDF on Luma is free to use with no signup required.
Are my files uploaded when I use Compress PDF?
No. Processing happens locally in your browser. Files are not uploaded to a server.
How do I use Compress PDF?
Shrink PDF file size for easier sharing. Open the tool, add your file, adjust options if needed, then download the result.