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-rw-r--r--pdf/pdf_interpret.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/pdf/pdf_interpret.c b/pdf/pdf_interpret.c
index d5bf4cd2..0513c622 100644
--- a/pdf/pdf_interpret.c
+++ b/pdf/pdf_interpret.c
@@ -1633,7 +1633,7 @@ pdf_run_extgstate(pdf_csi *csi, pdf_obj *rdb, pdf_obj *extgstate)
gstate->luminosity = 0;
tr = pdf_dict_gets(val, "TR");
- if (strcmp(pdf_to_name(tr), "Identity"))
+ if (tr && strcmp(pdf_to_name(tr), "Identity"))
fz_warn(ctx, "ignoring transfer function");
}
else if (pdf_is_name(val) && !strcmp(pdf_to_name(val), "None"))