Not every PDF is a novela. Look for:
Cuando el amor manda (BIANCA) (Spanish Edition) - Internet Archive
: Works by this well-known romance author are frequently available, such as Trampa Peligrosa and Claiming His Scandalous Love-Child . How to Access and Download
Many modern romance novels (published after 1928) are not in the public domain. However, the Internet Archive allows of digitized copies through their Open Library program.