diff --git a/include/qpdf/QPDF.hh b/include/qpdf/QPDF.hh
index dc6e9090..bef79f39 100644
--- a/include/qpdf/QPDF.hh
+++ b/include/qpdf/QPDF.hh
@@ -419,6 +419,7 @@ class QPDF
     // The PDF /Pages tree allows inherited values.  Working with
     // the pages of a pdf is much easier when the inheritance is
     // resolved by explicitly setting the values in each /Page.
+    QPDF_DLL
     void pushInheritedAttributesToPage();
 
     // Add new page at the beginning or the end of the current pdf.
diff --git a/include/qpdf/QPDFWriter.hh b/include/qpdf/QPDFWriter.hh
index a17b91f4..a446a02b 100644
--- a/include/qpdf/QPDFWriter.hh
+++ b/include/qpdf/QPDFWriter.hh
@@ -191,6 +191,7 @@ class QPDFWriter
     // Copy encryption parameters from another QPDF object.  If you
     // want to copy encryption from the object you are writing, call
     // setPreserveEncryption(true) instead.
+    QPDF_DLL
     void copyEncryptionParameters(QPDF&);
 
     // Set up for encrypted output.  Disables stream prefiltering and
diff --git a/libqpdf/QPDF_optimization.cc b/libqpdf/QPDF_optimization.cc
index e1fa8e76..67f147f3 100644
--- a/libqpdf/QPDF_optimization.cc
+++ b/libqpdf/QPDF_optimization.cc
@@ -170,7 +170,7 @@ QPDF::optimize(std::map<int, int> const& object_stream_data,
     pushInheritedAttributesToPage(allow_changes, false);
 
     // Traverse pages
-    int n = this->all_pages.size();
+    int n = (int)this->all_pages.size();
     for (int pageno = 0; pageno < n; ++pageno)
     {
         updateObjectMaps(ObjUser(ObjUser::ou_page, pageno),
diff --git a/qpdf/qpdf.cc b/qpdf/qpdf.cc
index 73f4cbd0..e7daa8ae 100644
--- a/qpdf/qpdf.cc
+++ b/qpdf/qpdf.cc
@@ -837,7 +837,7 @@ QPDFPageData::QPDFPageData(QPDF* qpdf, char const* range) :
     qpdf(qpdf),
     orig_pages(qpdf->getAllPages())
 {
-    this->selected_pages = parse_numrange(range, this->orig_pages.size());
+    this->selected_pages = parse_numrange(range, (int)this->orig_pages.size());
 }
 
 int main(int argc, char* argv[])