Added layer functionality. This allows content to be placed into layers, the visibility of which can be controlled from the document reader.

1 files changed, 1 insertions, 0 deletions

diff --git a/def.go b/def.go
index 422eb1c..6d12af3 100644
--- a/def.go
+++ b/def.go
@@ -197,6 +197,7 @@ type Fpdf struct {
 	transformNest    int                       // Number of active transformation contexts
 	err              error                     // Set if error occurs during life cycle of instance
 	protect          protectType               // document protection structure
+	layer            layerRecType              // manages optional layers in document
 	colorFlag        bool                      // indicates whether fill and text colors are different
 	color            struct {                  // Composite values of colors
 		draw, fill, text clrType