https://bugs.freedesktop.org/show_bug.cgi?id=103873

diff --git a/poppler/PDFDoc.cc b/poppler/PDFDoc.cc
index 90f039d8..a5249dcd 100644
--- a/poppler/PDFDoc.cc
+++ b/poppler/PDFDoc.cc
@@ -1503,7 +1503,7 @@ void PDFDoc::writeXRefTableTrailer(Goffset uxrefOffset, XRef *uxref, GBool write
 void PDFDoc::writeHeader(OutStream *outStr, int major, int minor)
 {
    outStr->printf("%%PDF-%d.%d\n", major, minor);
-   outStr->printf("%%\xE2\xE3\xCF\xD3\n");
+   outStr->printf("%%%c%c%c%c\n", 0xE2, 0xE3, 0xCF, 0xD3);
 }

 void PDFDoc::markDictionnary (Dict* dict, XRef * xRef, XRef *countRef, Guint numOffset, int oldRefNum, int newRefNum, std::set<Dict*> *alreadyMarkedDicts)