Maintainer: ‘Xin Zhou <xxz220@miami.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Xin",
                      family = "Zhou",
                      role = c("aut", "cre"),
                      email = "xxz220@miami.edu"),
               person(given = "Xiaodong",
                      family = "Cai",
                      role = "aut"))
as necessary.
Specified C++11: support will be removed soon
Maintainer: ‘Xin Zhou <xxz220@miami.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Xin",
                      family = "Zhou",
                      role = c("aut", "cre"),
                      email = "xxz220@miami.edu"),
               person(given = "Xiaodong",
                      family = "Cai",
                      role = "aut"))
as necessary.
Specified C++11: support will be removed soon
Specified C++11: support will be removed soon
Namespace in Imports field not imported from: ‘qpdf’
  All declared Imports should be used.
Specified C++11: support will be removed soon
Namespace in Imports field not imported from: ‘qpdf’
  All declared Imports should be used.
Specified C++11: support will be removed soon
Specified C++11: please drop specification unless essential
Specified C++11: please drop specification unless essential
Specified C++11: please drop specification unless essential
Specified C++11: please drop specification unless essential
Specified C++11: please drop specification unless essential
Specified C++11: please drop specification unless essential
installed size is 20.4Mb
  sub-directories of 1Mb or more:
    libs  19.7Mb
Specified C++11: please drop specification unless essential
installed size is 20.9Mb
  sub-directories of 1Mb or more:
    libs  20.2Mb
Specified C++11: please drop specification unless essential