: This is a popular, high-featured PDF interactive viewer and annotator for Android.
: This refers to a well-known (now defunct) torrent tracker and community where files were shared.
Downloading and installing older "cracked" APK files from historical torrent sources carries significant security risks, including: Ezpdf reader v1.4.2.1 androidh33tmad dog
The text you provided appears to be a specific typically found on file-sharing or torrent indexing sites.
: This is the "release tag" or the handle of the specific individual/group who cracked, packaged, or uploaded this particular version of the app. : This is a popular, high-featured PDF interactive
: Specifies the operating system the file is intended for.
: You miss out on years of security patches and bug fixes provided by the official developers. : This is the "release tag" or the
: Version 1.4.2.1 is extremely old and likely will not function correctly on modern versions of Android.