Slim PDF Reader

Slim PDF Reader is a free, and lightweight alternative to Adobe Acrobat Reader DC for Windows, macOS, and Linux. It offers advanced navigation options for a simplified PDF viewing experience, various annotation tools such as watermarks, comments, highlights, etc., interactive PDF form filling & digital signature verification, and much more packed inside a modern, intuitive UI with dark theme support. Slim PDF Reader is the smallest desktop PDF viewer with a download size of only 15 Mb.