Drop a PDF, get a lighter one back. Every byte is processed on your own device — nothing is ever uploaded.
ShrinkPDF is a free online PDF compressor that reduces file size directly in your browser, with no upload and no file size limit imposed by a server. It works well for shrinking PDFs before emailing them, uploading to a form with a size cap, or just cleaning up a bloated document. Because compression happens on your device using WebAssembly, your file — even something sensitive, like a contract or ID scan — never leaves your computer.
or drag one in from your desktop