The article describes use of a PDF printout as the complementary source of unique spatial data in addition to the data from interchange format files. Predate methodic already published by author is proposed to be supplied with the original algorithm for automatical spatial alignment of the two vector maps with similar origin and purpose. Some of the existing methods and their drawbacks are briefly mentioned. General description of the method, it's limitations and possibilities are described; algorithmycal solution provided with some schemas. The practical mean of existing technology and it's possible approaches with the use of the new algorithm are pointed out.

Keywords: geographic information system, data integration, vector map, interchange format, PDF, coordinate transformation, spatial alignment, similarity transformation, least squares' method, algorythmic solution

Data integration between different geographic information systems can be achieved with the interchange by the open data formats. GIS data of an area spatial type being batch-exported from the interchange files require a waste amount of manual work aimed on exploring each erroneous spatial object for all of it's topology errors. The algorythmic solution for automatic localization of topology errors is proposed, it's novelty and the enhancement potential are described.

Keywords: urban planning, thematic map, geographic information system, ObjectLand, data integration, interchange format, error reason, incorrect polygonal object, planar points' clusterization, K-medoid