The article deals with the arrangement and digitisation of the Collection of posters from the Historical Archives in Ptuj. A large part of the collection was acquired from the City Museum in Ptuj when the archive was established in 1955. The collection was first arranged and described in 1980 and then accrued in 2004 and 2021, when it was also digitised to facilitate the use of posters and protect them from damage. The digitisation of archival material has become an indispensable step in the preservation of historical heritage and enables the general public to access valuable resources. The article discusses the benefits and challenges of the digitisation process and its implementation. It also emphasises the role of digital technologies in preserving history and promoting research and education in the modern digital world.