Hi,

I realized a test with osmconvert. osmconvert file_original.pbf -o=file_o5m.o5m osmconvert file_o5m.o5m -o=file_final.pbf

There is a difference of size between file_original.pbf and file_final.pbf The file_final.pbf is smaller.

Can you explain the difference between the two files ? Does it exist a difference of quality, precision for the map defined by the file_final.pbf ?

In final, the osmconvert will be use to append data in a database with the option –subtract.

Thanks Best regards Richard