From cda47dad39be82f0e14a41880120e794f7f7497b Mon Sep 17 00:00:00 2001
From: fabboyrie <44363989+fabboyrie@users.noreply.github.com>
Date: Thu, 19 Nov 2020 08:06:10 +0100
Subject: [PATCH] Checkbox does not displays in acrobat reader

---
 src/fpdm.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/fpdm.php b/src/fpdm.php
index fb8627d..ca2c501 100644
--- a/src/fpdm.php
+++ b/src/fpdm.php
@@ -957,8 +957,8 @@ public function set_field_checkbox($name, $value)
                             $state = $this->value_entries["$name"]["infos"]["checkbox_yes"];
                         }
                         $CurLine =$this->pdf_entries[$field_checkbox_line];
-                        $OldLen=strlen($CurLine);
-                        $CurLine = '/AS /'.$state;
+                        $OldLen=strlen($CurLine);                        
+			$CurLine = '/AS /'.$state."\n/DV /$state\n/V /$state";
                         $NewLen=strlen($CurLine);
                         $Shift=$NewLen-$OldLen;
                         $this->shift=$this->shift+$Shift;