PassportPDF

AvePDF offers free online tools to compress, e-sign, convert, split, merge, organize, rotate, protect, unlock, and perform OCR on PDF files, documents, and images. These functions are accessible directly in the browser, with additional features available.

PDF Reducer Cloud is a powerful PDF compression software that utilizes the innovative PassportPDF technology, available in both free and paid versions. The software doesn't consume any system resources on the client-side.