summaryrefslogtreecommitdiff
path: root/fpdfsdk/fpdfedittext.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'fpdfsdk/fpdfedittext.cpp')
-rw-r--r--fpdfsdk/fpdfedittext.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/fpdfsdk/fpdfedittext.cpp b/fpdfsdk/fpdfedittext.cpp
index f15f9e4e6a..02bf722462 100644
--- a/fpdfsdk/fpdfedittext.cpp
+++ b/fpdfsdk/fpdfedittext.cpp
@@ -111,6 +111,9 @@ void AddCharcode(std::ostringstream* pBuffer, uint32_t number) {
// PDF spec 1.7 Section 5.9.2: "Unicode character sequences as expressed in
// UTF-16BE encoding." See https://en.wikipedia.org/wiki/UTF-16#Description
void AddUnicode(std::ostringstream* pBuffer, uint32_t unicode) {
+ if (unicode >= 0xD800 && unicode <= 0xDFFF)
+ unicode = 0;
+
char ans[8];
*pBuffer << "<";
size_t numChars = FXSYS_ToUTF16BE(unicode, ans);