It is important to note upfront: There is no official "Download" button for books unless the author has explicitly enabled it. Therefore, "downloading" usually involves retrieving the source files (images or PDFs) that make up the book using third-party tools or browser techniques.

If the publication is highly restricted and you only need a few pages:

versions of these tools are flagged by antivirus software as "potentially unwanted programs" (PUPs) or malware. Watermarks:

Here’s a full, objective review of — specifically focusing on free tools , their functionality, risks, and legal considerations.