annotation

Nitro PDF Pro is an application used to create, edit, sign, and secure PDF files and digital documents.

Industry’s most powerful PDF Reader Solution.

Screen capture, file sharing and productivity tool

Edit, annotate, convert and AI chat with PDF anytime, anywhere!

Powerful desktop PDF solution to create and edit PDF documents and integrate with Foxit eSign.

A video annotation tool designed for sport analysis.

The fastest way to take a customizable screenshot

Sonic Visualiser is a free, open source, cross-platform desktop application for music audio visualisation, annotation, and analysis.

Visualize Things in a New Way.

The Universal Document Viewer

Powerful PDF editor

PDF 高级编辑、大量处理和模板创建

A fast and easy-to-use PDF reader

The all-in-one tool for thinking and learning

Powerful PDF editor for your PC

Capture and Annotate Screenshot Tool

Fully Utilize Your Interactive Whiteboard.

A simple and easy-to-use PDF editor

Collect a Box of Curiosity

Flex Whiteboard is a standalone program just featuring Flex 11’s digital whiteboard. Use Flex Whiteboard to freehand draw, create shapes, annotate over images, and much more.

A powerful and easy-to-use screenshot/sticker tool that helps you improve efficiency

Affordable, Powerful PDF Editor for Windows, Mac, Linux

Open-source Windows snipping tool with OCR, screen recording, and annotation

Share screenshots and files the easiest way.

Screen capture tool that won't upload anything anywhere.

Free Screen Capture and Image Editing Utility.

Share screenshots via Internet in seconds: take a shot, edit it quickly and send to the Internet, to get a link which you can immediately provide to anyone

A brand new ebook learning tool to boost you study and think, helping you memorize more efficiently.

Powerful screenshot capture and pinning utility to boost productivity.

Extracts annotations from PDF and converts them to a JSON list.

IPEVO Visualizer LTSE is our first accessibility software. It includes built-in assistive features for low vision users to easily navigate and adjust live images from their USB or wirelessly connected IPEVO document camera on their computer screen.