How it works
Open a PDF and switch to Annotate mode.
Choose the text tool, click a page, and type into the inline HTML input.
Move, style, rotate, or double-click added text to edit it again.
Download to flatten the annotation into the exported PDF.
Related tools
Privacy-first
Annotations are created locally in your browser. No PDF upload is required, and after CrabPDF is loaded you can turn off Wi-Fi and keep working.