Merge branch 'master' into lanyi-expanded-agent-paper-main

1 files changed, 3 insertions, 11 deletions

diff --git a/src/client/views/pdf/PDFViewer.tsx b/src/client/views/pdf/PDFViewer.tsx
index 1de945d69..6e8ce0ce9 100644
--- a/src/client/views/pdf/PDFViewer.tsx
+++ b/src/client/views/pdf/PDFViewer.tsx
@@ -163,25 +163,17 @@ export class PDFViewer extends ObservableReactComponent<IViewerProps> {
     };
 
     @computed get _scrollHeight() {
-        return this._pageSizes.reduce((size, page) => size + page.height, 0);
+        return this._pageSizes.reduce((size, page) => size + page.height, 0) / window.devicePixelRatio;
     }
 
     initialLoad = () => {
-        const page0or180 = (page: { rotate: number }) => page.rotate === 0 || page.rotate === 180;
         if (this._pageSizes.length === 0) {
             const devicePixelRatio = window.devicePixelRatio;
             document.documentElement?.style.setProperty('--devicePixelRatio', window.devicePixelRatio.toString()); // set so that css can use this to adjust various PDFJs divs
-            Promise.all(
-                numberRange(this._props.pdf.numPages).map(i =>
-                    this._props.pdf.getPage(i + 1).then(page => ({
-                        width: (page.view[page0or180(page) ? 2 : 3] - page.view[page0or180(page) ? 0 : 1]) * devicePixelRatio,
-                        height: (page.view[page0or180(page) ? 3 : 2] - page.view[page0or180(page) ? 1 : 0]) * devicePixelRatio,
-                    }))
-                )
-            ).then(
+            Promise.all(numberRange(this._props.pdf.numPages).map(i => this._props.pdf.getPage(i + 1).then(page => page.getViewport({ scale: devicePixelRatio })))).then(
                 action(pages => {
                     this._pageSizes = pages;
-                    this._props.loaded(pages.lastElement(), this._props.pdf.numPages);
+                    this._props.loaded(pages[0], this._props.pdf.numPages);
                     this.createPdfViewer();
                 })
             );