Take border into account also for height when determining signature font size

The border reduces the available height, so take it into account for the height too, not only the width

1 files changed, 3 insertions, 2 deletions

diff --git a/poppler/Form.cc b/poppler/Form.cc
index c5891d94..46812869 100644
--- a/poppler/Form.cc
+++ b/poppler/Form.cc
@@ -742,11 +742,12 @@ bool FormWidgetSignature::signDocumentWithAppearance(const std::string &saveFile
     const double dx = std::get<0>(dxdy);
     const double dy = std::get<1>(dxdy);
     const double wMax = dx - 2 * borderWidth - 4;
+    const double hMax = dy - 2 * borderWidth;
     if (fontSize == 0) {
-        fontSize = Annot::calculateFontSize(form, font.get(), &signatureText, wMax / 2.0, dy);
+        fontSize = Annot::calculateFontSize(form, font.get(), &signatureText, wMax / 2.0, hMax);
     }
     if (leftFontSize == 0) {
-        leftFontSize = Annot::calculateFontSize(form, font.get(), &signatureTextLeft, wMax / 2.0, dy);
+        leftFontSize = Annot::calculateFontSize(form, font.get(), &signatureTextLeft, wMax / 2.0, hMax);
     }
     const DefaultAppearance da { { objName, pdfFontName.c_str() }, fontSize, std::move(fontColor) };
     getField()->setDefaultAppearance(da.toAppearanceString());