diff --git a/src/component/plotly-dash-preview/parse.js b/src/component/plotly-dash-preview/parse.js
index 454ee64c..83a62bf2 100644
--- a/src/component/plotly-dash-preview/parse.js
+++ b/src/component/plotly-dash-preview/parse.js
@@ -44,6 +44,10 @@ function parse (body, req, opts, sendToRenderer) {
       width: body.pageSize.width * cst.pixelsInMicron,
       height: body.pageSize.height * cst.pixelsInMicron
     }
+    result.pdfOptions.pageSize = {
+      width: Math.ceil(body.pageSize.width),
+      height: Math.ceil(body.pageSize.height)
+    }
   } else {
     return errorOut(
       400,
diff --git a/test/unit/plotly-dash-preview_test.js b/test/unit/plotly-dash-preview_test.js
index 90230dd7..30756d25 100644
--- a/test/unit/plotly-dash-preview_test.js
+++ b/test/unit/plotly-dash-preview_test.js
@@ -54,6 +54,10 @@ tap.test('parse:', t => {
         height: 3.779527559055118,
         width: 3.779527559055118
       })
+      t.same(result.pdfOptions.pageSize, {
+        height: 1000,
+        width: 1000
+      })
       t.end()
     })
   })