Compress PDF files on your device
Optimize and streamline bloated documents without uploading confidential data to cloud processors. Free, instant, and private.
How client-side compression works
Many PDF generation engines inject redundant metadata headers, duplicate font sub-sets, and uncompressed stream tables. By reloading the structural object tree and serializing via compact object streams, our browser engine purges excess overhead while maintaining visual fidelity.
Stay within email limits
When you need to send scanned contracts or presentations through mail servers capped at 25MB, combining compression with our page-splitting tools guarantees your message lands safely in your client's inbox.
Frequently asked questions
The tool strips redundant metadata dictionaries, removes unused object streams, and re-compresses embedded streams using modern deflate algorithms right in your browser memory without cloud servers.