Index: qt5/src/poppler-form.h
===================================================================
--- qt5/src/poppler-form.h
+++ qt5/src/poppler-form.h
@@ -122,6 +122,11 @@
 	bool isVisible() const;
 
 	/**
+	  Set whether this form field is visible.
+	 */
+	void setVisible(bool value);
+
+	/**
 	  The activation action of this form field.
 
 	  \note It may be null.
Index: qt5/src/poppler-form.cc
===================================================================
--- qt5/src/poppler-form.cc
+++ qt5/src/poppler-form.cc
@@ -162,6 +162,17 @@
   return !(m_formData->fm->getWidgetAnnotation()->getFlags() & Annot::flagHidden);
 }
 
+void FormField::setVisible(bool value)
+{
+  Guint flags = m_formData->fm->getWidgetAnnotation()->getFlags();
+  if (value) {
+    flags &= ~Annot::flagHidden;
+  } else {
+    flags |= Annot::flagHidden;
+  }
+  m_formData->fm->getWidgetAnnotation()->setFlags(flags);
+}
+
 Link* FormField::activationAction() const
 {
   Link* action = nullptr;