Magnetic bubbles are circular magnetic domains that may occur in thin magnetic films with perpendicular
magnetic anisotropy (PMA). Because they can form with high topological stability and can be manipulated by
external driving forces, magnetic bubbles have been considered as prominent information carriers, which are
set to 1 or 0, corresponding to the presence or absence. For practical applications, such information carriers
must be written and deleted in a specific area of the magnetic thin film. Herein, we report that the magnetic
bubbles can be written and deleted using local magnetic fields. By applying a localized magnetic field from the
magnetic tip of a magnetic force microscopy to the stripe domain structures of the PMA multilayer, bubbles
can be written at room temperature via the transformation from stripe domains to magnetic bubbles. The
deleting of the bubbles in the targeted area demonstrated by the local magnetic field accompanied by a uniform
external field. Our findings can provide a key for manipulating information carriers in the spintronic
device based on topological magnetic structures such as magnetic skyrmions and bubbles.