Okay, here's the practical route I take when I want to get a legal copy of a book like 'My Dark Romeo' without wading into shady sites. First, check the major ebook stores: Amazon Kindle Store, Google Play Books, Apple Books, Kobo, and Barnes & Noble. If the book is commercially published, one of those will often sell an EPUB, MOBI, or Kindle file that you can download or read in-app. Publishers sometimes sell PDFs directly from their websites too, so look up the publisher listed on any bibliographic info.
If you don't see it for sale, I always look at the author’s official website or their Patreon/Gumroad/Ko-fi page—many indie authors offer direct PDF or EPUB downloads there, sometimes with extras. Libraries are a lifesaver: use OverDrive/Libby or Hoopla, where you can borrow digital copies legally. For older or public-domain works, Project Gutenberg or Internet Archive might have legal downloads or borrow options. And if it’s fanfiction, try Archive of Our Own or the author’s personal page and politely ask the author if they provide a downloadable PDF.
Finally, avoid torrent sites and sketchy “free PDF” portals. If the file is behind a paywall or the author/publisher hasn't authorized distribution, it’s almost certainly illegal. If you're unsure whether a source is legit, check ISBN listings, the publisher, or contact the author directly—most creators appreciate that you asked and may point you to a legal copy.