diff --git a/htdocs/core/ajax/onlineSign.php b/htdocs/core/ajax/onlineSign.php
index e28df2fc758..08a9ad5c05e 100644
--- a/htdocs/core/ajax/onlineSign.php
+++ b/htdocs/core/ajax/onlineSign.php
@@ -215,9 +215,21 @@ if ($action == "importSignature") {
 								// A signature image file is 720 x 180 (ratio 1/4) but we use only the size into PDF
 								// TODO Get position of box from PDF template
 
-								$param['xforimgstart'] = (empty($s['w']) ? 120 : round($s['w'] / 2) + 15);
-								$param['yforimgstart'] = (empty($s['h']) ? 240 : $s['h'] - 60);
-								$param['wforimg'] = $s['w'] - 20 - $param['xforimgstart'];
+								if (getDolGlobalString("PROPAL_SIGNATURE_XFORIMGSTART")) {
+											$param['xforimgstart'] = getDolGlobalString("PROPAL_SIGNATURE_XFORIMGSTART");
+								} else {
+									$param['xforimgstart'] = (empty($s['w']) ? 120 : round($s['w'] / 2) + 15);
+								}
+								if (getDolGlobalString("PROPAL_SIGNATURE_YFORIMGSTART")) {
+									$param['yforimgstart'] = getDolGlobalString("PROPAL_SIGNATURE_YFORIMGSTART");
+								} else {
+									$param['yforimgstart'] = (empty($s['h']) ? 240 : $s['h'] - 60);
+								}
+								if (getDolGlobalString("PROPAL_SIGNATURE_WFORIMG")) {
+									$param['wforimg'] = getDolGlobalString("PROPAL_SIGNATURE_WFORIMG");
+								} else {
+									$param['wforimg'] = $s['w'] - 20 - $param['xforimgstart'];
+								}
 
 								dolPrintSignatureImage($pdf, $langs, $param);
 							}