diff --git a/lib/zin/wg/gantt/js/v1.js b/lib/zin/wg/gantt/js/v1.js
index 137681f2f3..b39b663cd2 100644
--- a/lib/zin/wg/gantt/js/v1.js
+++ b/lib/zin/wg/gantt/js/v1.js
@@ -122,6 +122,26 @@ function drawGanttToCanvas(exportType, successCallback, errorCallback)
                     afterFinish(canvas);
                     if(errorCallback) errorCallback('Cannot convert image to blob.');
                 };
+                let width = canvas.width;
+                let height = canvas.height;
+                getRemoteScript(jsRoot + 'js/pdfjs/min.js', function()
+                {
+                    updateProgress(0.8);
+                    let pdf = new jsPDF(
+                    {
+                        format: [width, height],
+                        unit: 'px',
+                        orientation: width > height ? 'l' : 'p'
+                    });
+                    pdf.addImage(canvas, 0, 0, pdf.internal.pageSize.getWidth(), pdf.internal.pageSize.getHeight());
+                    pdf.save(fileName + '.pdf');
+                    if(successCallback) successCallback(pdf);
+                    afterFinish();
+                }, function(error)
+                {
+                    afterFinish(canvas);
+                    if(errorCallback) errorCallback(error);
+                });
             }).catch(function(error)
             {
                 afterFinish();