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-rw-r--r--core/fpdftext/cpdf_textpage.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/core/fpdftext/cpdf_textpage.cpp b/core/fpdftext/cpdf_textpage.cpp
index d88464bfc4..b6eb87eea1 100644
--- a/core/fpdftext/cpdf_textpage.cpp
+++ b/core/fpdftext/cpdf_textpage.cpp
@@ -507,6 +507,9 @@ CPDF_TextPage::TextOrientation CPDF_TextPage::FindTextlineFlowOrientation()
const int32_t nPageWidth = static_cast<int32_t>(m_pPage->GetPageWidth());
const int32_t nPageHeight = static_cast<int32_t>(m_pPage->GetPageHeight());
+ if (nPageWidth <= 0 || nPageHeight <= 0)
+ return TextOrientation::Unknown;
+
std::vector<bool> nHorizontalMask(nPageWidth);
std::vector<bool> nVerticalMask(nPageHeight);
FX_FLOAT fLineHeight = 0.0f;