1 files changed, 3 insertions, 0 deletions
diff --git a/libqpdf/JSON.cc b/libqpdf/JSON.cc
index c656bb14..a45dbd2e 100644
--- a/libqpdf/JSON.cc
+++ b/libqpdf/JSON.cc
@@ -181,6 +181,9 @@ JSON::encode_string(std::string const& str)
           case '\b':
             result += "\\b";
             break;
+          case '\f':
+            result += "\\f";
+            break;
           case '\n':
             result += "\\n";
             break;