In Lost Ark, the Wanted Poster is an item that occasionally drops. You can only get it on the Tortoyk Continent. While there may not be a way for you to get it sooner, you can see the location where we found it below.
Where is the Wanted Poster in Lost Ark?
You can find a Wanted Poster at the southeast of Sweetwater Forest. It is located in the Sweet Fruit Forest. Players who are nearby will be attacked by pirates that automatically spawn there every so often. You can see the exact location below:
Related: How to get Hybee Honey in Lost Ark
We got it after beating the Elite Red Mist Pirate, but it's a random drop. There is no evidence that killing harder monsters rewards these collectibles, but we find them more often when hunting these kinds of monsters.
We would recommend fighting pirates and the Elite Red Mist Pirate because they seem to drop their Wanted posters pretty often.
Open your Inventory by pressing the I key, and then right-click on the Wanted Poster. You will receive notification that a Wanted Poster collection has been made in your Adventurer's Tome.
For more information on Lost Ark, check out Should you dismantle your equipment or sell it in Lost Ark? and Where to farm Levataonis Core in Lost Ark? on Pro Game Guides.