Error (XX): Illegal character <XX> in hex string

[Dids]

{
    "error": "Illegal character <3f> in hex string\nError (82): Illegal character <78> in hex string\nError (83): Illegal character <70> in hex string\nError (86): Illegal character <6b> in hex string\nError (88): Illegal character <74> in hex string\nError (92): Illegal character <67> in hex string\nError (93): Illegal character <69> in hex string\nError (94): Illegal character <6e> in hex string\nError (95): Illegal character <3d> in hex string\nError (96): Illegal character <27> in hex string\nError (97): Illegal character <ef> in hex string\nError (98): Illegal character <bb> in hex string\nError (99): Illegal character <bf> in hex string\nError (100): Illegal character <27> in hex string\nError (102): Illegal character <69> in hex string\nError (104): Illegal character <3d> in hex string\nError (105): Illegal character <27> in hex string\nError (106): Illegal character <57> in hex string\nError (108): Illegal character <4d> in hex string\nError (110): Illegal character <4d> in hex string\nError (111): Illegal character <70> in hex string\nError (114): Illegal character <68> in hex string\nError (115): Illegal character <69> in hex string\nError (116): Illegal character <48> in hex string\nError (117): Illegal character <7a> in hex string\nError (118): Illegal character <72> in hex string\nError (120): Illegal character <53> in hex string\nError (121): Illegal character <7a> in hex string\nError (122): Illegal character <4e> in hex string\nError (123): Illegal character <54> in hex string\nError (125): Illegal character <7a> in hex string\nError (126): Illegal character <6b> in hex string\nError (130): Illegal character <27> in hex string\nError (131): Illegal character <3f> in hex string\n",
}

[Dids]

This just needs a way to skip erroneous pages with pdftk.