LightScreen vs pdfzus

LightScreen

LightScreen is a free, no-signup browser tool that turns your screen into a fullscreen fill light or ring light for video calls, streaming, selfies and makeup. It also offers solid white and colour screens for screen testing and cleaning. Pick a colour and brightness, go fullscreen, done - nothing to install.

pdfzus

pdfzus is a browser-based tool for combining multiple PDF files, arranging them by drag and drop, and compressing the finished document when needed. The core workflow requires no account and adds no watermark. PDF processing happens locally on the user's device, which makes pdfzus useful for applications, email attachments, office documents and upload portals.