question: concatenates a pdf document selecting the pages to keep . the pages are described as a list of integer . the page ordering can be changed but no page repetitions are allowed . concode_field_sep PdfCopyFieldsImp fc concode_field_sep void setOutlines concode_elem_sep void setViewerPreferences concode_elem_sep void addJavaScript concode_elem_sep void addViewerPreference concode_elem_sep PdfWriter getWriter concode_elem_sep boolean isFullCompression concode_elem_sep void setEncryption concode_elem_sep void setEncryption concode_elem_sep void setEncryption concode_elem_sep void setEncryption concode_elem_sep void setFullCompression concode_elem_sep void close concode_elem_sep void open
target: void function ( PdfReader arg0 , List < Integer > arg1 ) { fc . addDocument ( arg0 , arg1 ) ; }