Amazon just released two new Kindle models in the UK, including its most expensive e-ink device ever. Starting from £569.99, ...

PDF Agile is built to clean all of that up. And right now, a lifetime subscription is just $39.99 (MSRP $119).

TL;DR: This lifetime subscription to the PDFToolKit Unlimited Plan handles all your PDF needs for life, and now it’s just $79 ...

PocketBook’s new InkPad One pairs a 10.3-inch E Ink Mobius display with stylus support, transforming it from a simple e-reader into a tool for annotating PDFs and taking handwritten notes. It’s priced ...

If you happen to be partial to the iPad Notes app, you won't want to skip out on these useful app hacks.

Transform any PDF into an interactive canvas. Draw, annotate, and collaborate without uploading your documents to external servers.

This LaTeX template can help you attaching annotations and links at a PDF document. Hope that it can be useful when paper reading. Annotation ① and ② used the 🤔 emoji to mark the positions that need ...