A turn-based indie CRPG heavily inspired by the original Fallout series.
If you successfully deliver all 500 pieces, he provides a unique special reward. How to Collect Wastepaper
The "useful paper" in (version 1.185-GOG) likely refers to Wastepaper , an item used to complete a specific side quest in the city of Krasnoznamenny . The "Wastepaper" Quest
You can sell him up to 500 pieces of wastepaper.
The photographer increases his purchase price each time you bring him a new batch of paper.