1 files changed, 6 insertions, 6 deletions

diff --git a/src/client/views/pdf/PDFViewer.tsx b/src/client/views/pdf/PDFViewer.tsx
index 30c51d9ca..c792df882 100644
--- a/src/client/views/pdf/PDFViewer.tsx
+++ b/src/client/views/pdf/PDFViewer.tsx
@@ -346,7 +346,7 @@ export class PDFViewer extends ViewBoxAnnotatableComponent<IViewerProps, PdfDocu
     @action
     scrollToAnnotation = (scrollToAnnotation: Doc) => {
         if (scrollToAnnotation) {
-            const offset = this.visibleHeight() / 2 * 96 / 72;
+            const offset = this.visibleHeight() / 2;
             this._mainCont.current && smoothScroll(500, this._mainCont.current, NumCast(scrollToAnnotation.y) - offset);
             Doc.linkFollowHighlight(scrollToAnnotation);
         }
@@ -521,7 +521,7 @@ export class PDFViewer extends ViewBoxAnnotatableComponent<IViewerProps, PdfDocu
         if (this._marqueeing) {
             if (this._marqueeWidth > 10 || this._marqueeHeight > 10) {
                 const marquees = this._mainCont.current!.getElementsByClassName("pdfViewerDash-dragAnnotationBox");
-                if (marquees && marquees.length) { // copy the marquee and convert it to a permanent annotation.
+                if (marquees?.length) { // copy the marquee and convert it to a permanent annotation.
                     const style = (marquees[0] as HTMLDivElement).style;
                     const copy = document.createElement("div");
                     copy.style.left = style.left;
@@ -544,7 +544,7 @@ export class PDFViewer extends ViewBoxAnnotatableComponent<IViewerProps, PdfDocu
         }
         else {
             const sel = window.getSelection();
-            if (sel && sel.type === "Range") {
+            if (sel?.type === "Range") {
                 const selRange = sel.getRangeAt(0);
                 this.createTextAnnotation(sel, selRange);
                 PDFMenu.Instance.jumpTo(e.clientX, e.clientY);
@@ -705,7 +705,7 @@ export class PDFViewer extends ViewBoxAnnotatableComponent<IViewerProps, PdfDocu
     marqueeX = () => this._marqueeX;
     marqueeY = () => this._marqueeY;
     marqueeing = () => this._marqueeing;
-    visibleHeight = () => this.props.PanelHeight() / this.props.ContentScaling() * 72 / 96;
+    visibleHeight = () => this.props.PanelHeight() / this.props.ContentScaling();
     contentZoom = () => this._zoomed;
     render() {
         TraceMobx();
@@ -726,7 +726,7 @@ export class PDFViewer extends ViewBoxAnnotatableComponent<IViewerProps, PdfDocu
     }
 }
 
-interface PdfViewerMarqueeProps {
+export interface PdfViewerMarqueeProps {
     isMarqueeing: () => boolean;
     width: () => number;
     height: () => number;
@@ -735,7 +735,7 @@ interface PdfViewerMarqueeProps {
 }
 
 @observer
-class PdfViewerMarquee extends React.Component<PdfViewerMarqueeProps> {
+export class PdfViewerMarquee extends React.Component<PdfViewerMarqueeProps> {
     render() {
         return !this.props.isMarqueeing() ? (null) : <div className="pdfViewerDash-dragAnnotationBox"
             style={{