If you locate a video file of the 1999 film on the Internet Archive, the quality can vary significantly. Because the Disney Renaissance films are highly protected intellectual property, high-definition (HD) or 4K versions are rarely available for legal public download on the Archive. Most available links are standard definition (480p or lower), serving more as archival preservation than a high-fidelity viewing experience.
Archive.org provides multiple download options: tarzan 1999 internet archive link
The Internet Archive is a fantastic resource that provides free access to a wide range of digital content, including movies, TV shows, music, and more. And, as it happens, they have a copy of Tarzan (1999) available for download. If you locate a video file of the