Merge pull request #4915 from dferer/fix-4914

Fix #4914

src/shared/annotation.js

@@ -189,7 +189,7 @@ var Annotation = (function AnnotationClosure() {
                 data &&
                 (!data.annotationFlags ||
                  !(data.annotationFlags & 0x22)) &&  // Hidden or NoView
-                data.rect);                          // rectangle is nessessary
+                data.rect);                          // rectangle is necessary
     },
 
     isPrintable: function Annotation_isPrintable() {
@@ -198,7 +198,8 @@ var Annotation = (function AnnotationClosure() {
                 data &&
                 data.annotationFlags &&              // Default: not printable
                 data.annotationFlags & 0x4 &&        // Print
-                data.rect);                          // rectangle is nessessary
+                !(data.annotationFlags & 0x2) &&     // Hidden
+                data.rect);                          // rectangle is necessary
     },
 
     loadResources: function Annotation_loadResources(keys) {
@@ -323,7 +324,9 @@ var Annotation = (function AnnotationClosure() {
     if (annotation.isViewable() || annotation.isPrintable()) {
       return annotation;
     } else {
-      warn('unimplemented annotation type: ' + subtype);
+      if (SUPPORTED_TYPES.indexOf(subtype) === -1) {
+        warn('unimplemented annotation type: ' + subtype);
+      }
     }
   };