Annotate PDF is a fast, 100% client-side online PDF annotator. Edit and sign PDFs directly in your browser without uploading files to a server. Add text with Google Fonts, draw signatures, insert shapes, and use the whiteout tool for private PDF redaction. It’s a secure, free PDF editor that requires no installation. Perfect for students, lawyers, and researchers who value privacy and speed. Stop using bloated software—just select your file and start marking up.
This AI-powered extension generates YouTube chapters with timestamps in one click. It scans your video, creates clear, search-optimized chapter titles, and lets you copy them directly into the description. It works even without subtitles and helps improve navigation, watch time, and search visibility for long videos.