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-rw-r--r--mupdf/pdf_xref.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/mupdf/pdf_xref.c b/mupdf/pdf_xref.c
index 5c365f7f..c757fe82 100644
--- a/mupdf/pdf_xref.c
+++ b/mupdf/pdf_xref.c
@@ -138,11 +138,8 @@ pdf_decryptxref(pdf_xref *xref)
encrypt = fz_dictgets(xref->trailer, "Encrypt");
id = fz_dictgets(xref->trailer, "ID");
- if (encrypt)
+ if (fz_isdict(encrypt))
{
- if (fz_isnull(encrypt))
- return fz_okay;
-
error = pdf_newcrypt(&xref->crypt, encrypt, id);
if (error)
return fz_rethrow(error, "cannot create decrypter");