The Collaborative International Dictionary
Placarding
Placard \Pla*card"\, v. t. [imp. & p. p. Placarded; p. pr. & vb. n. Placarding.]
To post placards upon or within; as, to placard a wall, to placard the city.
To announce by placards; as, to placard a sale.
Wiktionary
placarding
vb. (present participle of placard English)