签名-增加路径不存在的判断、限制图片签名的大小

PDF Office/ViewModels/PropertyPanel/AnnotPanel/SignatureAnnotPropertyViewModel.cs

@@ -67,7 +67,11 @@ namespace PDF_Master.ViewModels.PropertyPanel.AnnotPanel
                     customStamp.inkThickness = items[i].inkThickness;
                     customStamp.inkColor = items[i].inkColor;
                     customStamp.Type = (SignatureType)items[i].Type;
-                    SignatureList.Add(customStamp);
+                    if (File.Exists(items[i].SourcePath))
+                    {
+                        SignatureList.Add(customStamp);
+                    }
+                    
                 }
             }
         }
@@ -86,6 +90,10 @@ namespace PDF_Master.ViewModels.PropertyPanel.AnnotPanel
                         stampArgs.Opacity = 1;
                         stampArgs.Type = StampType.IMAGE_STAMP;
                         stampArgs.ImagePath = signature.SourcePath;
+                        //stampArgs.ImageHeight = 140;
+                        //stampArgs.ImageWidth = 140;
+                        stampArgs.MaxHeight = 140;
+                        stampArgs.MaxWidth = 140;
                         PDFViewer.SetMouseMode(MouseModes.AnnotCreate);
                         PDFViewer.SetToolParam(stampArgs);
                         currentSignature = signature;