/usr/ is in libqpdf-dev 8.0.2-3~16.04.1.
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..
/usr/include/
/usr/include/qpdf/
/usr/share/doc/libqpdf-dev/
/usr/include/qpdf/DLL.h
/usr/include/qpdf/QTC.hh
/usr/include/qpdf/Pl_Count.hh
/usr/include/qpdf/QPDFObjGen.hh
/usr/include/qpdf/BufferInputSource.hh
/usr/include/qpdf/QPDFTokenizer.hh
/usr/include/qpdf/Pl_StdioFile.hh
/usr/include/qpdf/FileInputSource.hh
/usr/include/qpdf/QPDFXRefEntry.hh
/usr/include/qpdf/Pl_Buffer.hh
/usr/include/qpdf/InputSource.hh
/usr/include/qpdf/QPDFWriter.hh
/usr/include/qpdf/QPDF.hh
/usr/include/qpdf/qpdf-c.h
/usr/include/qpdf/Pl_Flate.hh
/usr/include/qpdf/Constants.h
/usr/include/qpdf/RandomDataProvider.hh
/usr/include/qpdf/Pipeline.hh
/usr/include/qpdf/Pl_Discard.hh
/usr/include/qpdf/Buffer.hh
/usr/include/qpdf/QUtil.hh
/usr/include/qpdf/Pl_DCT.hh
/usr/include/qpdf/Pl_QPDFTokenizer.hh
/usr/include/qpdf/Pl_Concatenate.hh
/usr/include/qpdf/QPDFObjectHandle.hh
/usr/include/qpdf/Types.h
/usr/include/qpdf/QPDFExc.hh
/usr/include/qpdf/PointerHolder.hh
/usr/include/qpdf/Pl_RunLength.hh
/usr/include/qpdf/QPDFObject.hh
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libqpdf.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libqpdf.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libqpdf-dev/README.md.gz
/usr/share/doc/libqpdf-dev/examples/
/usr/share/doc/libqpdf-dev/examples/pdf-split-pages.cc
/usr/share/doc/libqpdf-dev/examples/pdf-npages.cc
/usr/share/doc/libqpdf-dev/examples/pdf-count-strings.cc
/usr/share/doc/libqpdf-dev/examples/pdf-bookmarks.cc
/usr/share/doc/libqpdf-dev/examples/pdf-filter-tokens.cc
/usr/share/doc/libqpdf-dev/examples/pdf-invert-images.cc
/usr/share/doc/libqpdf-dev/examples/pdf-mod-info.cc
/usr/share/doc/libqpdf-dev/examples/pdf-linearize.c
/usr/share/doc/libqpdf-dev/examples/pdf-create.cc
/usr/share/doc/libqpdf-dev/examples/pdf-double-page-size.cc
/usr/share/doc/libqpdf-dev/examples/pdf-parse-content.cc
/usr/share/doc/libqpdf-dev/copyright
/usr/lib/x86_64-linux-gnu/libqpdf.so
/usr/share/doc/libqpdf-dev/changelog.Debian.gz