Yes. The Internet Archive has been involved in lawsuits (e.g., Hachette v. Internet Archive) regarding CDL, but as of this writing, it remains operational and vital for book lovers. For public domain works, it is 100% legal to download the PDF forever.
To truly rank as a top book lover using this ecosystem, try these hacks: book lovers pdf google drive archiveorg top
Imagine you are running a book club reading Frankenstein (public domain). To truly rank as a top book lover
This is ethical, efficient, and completely free. This is ethical, efficient, and completely free