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-rw-r--r--core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp7
1 files changed, 4 insertions, 3 deletions
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
index 3ab4423172..49d6760c65 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
@@ -2163,12 +2163,13 @@ CPDF_Object* CPDF_SyntaxParser::GetObject(CPDF_IndirectObjects* pObjList,
pDict->SetAt(keyNoSlash, pObj);
}
- if (IsSignatureDict(pDict.get())) {
- FX_FILESIZE dwSavePos = m_Pos;
+ // Only when this is a signature dictionary and has contents, we reset the
+ // contents to the un-decrypted form.
+ if (IsSignatureDict(pDict.get()) && dwSignValuePos) {
+ CFX_AutoRestorer<FX_FILESIZE> save_pos(&m_Pos);
m_Pos = dwSignValuePos;
CPDF_Object* pObj = GetObject(pObjList, objnum, gennum, nullptr, FALSE);
pDict->SetAt("Contents", pObj);
- m_Pos = dwSavePos;
}
if (pContext) {
pContext->m_DictEnd = m_Pos;