A few examples of Euclid VIS image cutouts centred on the most massive dwarf galaxies in the Fornax cluster in our sample, with stellar masses of M_* > 10⁷ M_⊙ (see all 14 dwarf galaxies in this stellar mass range in Fig. C.1). The cutouts correspond to 4 times the half-light radius (of dwarf galaxies) on each side. North is up, east to the left. The red circles mark the final GC candidates that were selected based on their compactness and colours. Those candidates that pass the compactness criteria, but do not satisfy colour selection, are shown with orange circles. The green circles show all the sources identified around these dwarf galaxies. The three numbers below the name of each dwarf galaxy correspond to the number of GC candidates within 3R_e, the number of GC candidates in the background normalised to the area within 3R_e , and the estimated number of GCs corrected for incompleteness, respectively.