Having the sort of flexible binding characteristic of a paperback book.(adjective)
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Use "paperbacked" in a sentence
"Using a record-sized camera they take color shots of the material to be reproduced, etch the exposures so obtained on copper plates, and use the plates for printing by the gravure process on an extremely thin paperbacked film."
"She opened the purse and withdrew a paperbacked bub - ble with a blue derm inside."
"O this is easy put in motion some old series to be trade paperbacked such as the original Booster Gold, New Warriors, Quasar, Blue Beetle and the like."