How do creators or publishers typically make short comic stories available for free PDF download?

Creators often use free PDF downloads as a strategy to build an audience, promote their work, or offer bonus content. They might release a short story as a teaser for a larger series, a standalone gift to fans, or an entry point for new readers. Publishers might utilize free PDFs for promotional campaigns, samplers, or educational outreach. Platforms like Gumroad or Itch.io facilitate direct distribution from creators, often supporting a 'pay-what-you-want' model that includes a free option.