: A completely free tool for Windows and Mac that supports highlighting, signatures, and form filling without watermarks.
: An open-source application specifically designed for handwritten notes and PDF annotation. : A completely free tool for Windows and
: Provides standard markup tools like notes, highlights, and freehand drawing for free. : A completely free tool for Windows and
For professional or academic use, the official software is available with legitimate support: Previous PDF Annotator Versions : A completely free tool for Windows and
: Cracked software often contains hidden JavaScript or executable payloads that can inject shell code into your system's memory or download further malware from remote URLs.
: A free, open-source universal document viewer that supports advanced annotation features.