I finally found a free, lightweight open-source PDF reader that does everything I want

I usually reach for PDFGear when I need serious PDF editing. It’s the best free PDF editor hands down. But it’s not the lightest viewer around and feels crowded with features when you just want to read. Sure, I could use my browser’s built-in PDF viewer for quick reading, and it works fine for basic documents. But browsers struggle with large PDFs or when you need to quickly flip through multiple documents.