01The Art library
The Art button searches the open collections of The Met, the Art Institute of Chicago and the Cleveland Museum of Art. Everything is CC0 or out-of-copyright: edit it, print it, SELL what you make. Credits attach automatically.
02Find good source material
Search terms that work: "travel poster", "japanese print", "botanical", "map", a city, a flower, an animal. Older lithographs and prints vectorize beautifully; paintings give painterly poster results.
03Vectorize: the travel-poster preset
With the inserted artwork selected, right-click ▸ Vectorize. Press Travel poster: saturation and contrast jump, the palette drops to eight flat colours. Create, and the picture is now bold, editable shapes.
04Finish like a poster artist
Pop or Poster the colours brighter, add chunky text in Bebas Neue or Anton, pull a Border around the page, maybe a flat sky rectangle behind. Study any 1920s rail poster: big type, few colours, confident shapes.
05Print-ready output
Page setup goes up to A1, A0 and US 18×24/24×36 poster sizes. Export a vector PDF — razor sharp at any size — and you have a sellable print. The /licensing page answers the "can I really sell this?" question: yes.