From 60cb358ccee52eae62b3207090d5c5f09c60b4e5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Moya?= <andres.moya@kaleidos.net>
Date: Thu, 9 Sep 2021 14:11:50 +0200
Subject: [PATCH] :bug: Fix extra blank pages when exporting to PDF

---
 frontend/src/app/main/ui/render.cljs | 4 ++--
 frontend/src/app/util/dom.cljs       | 4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/frontend/src/app/main/ui/render.cljs b/frontend/src/app/main/ui/render.cljs
index 59a31d16a8..9cea9c60a6 100644
--- a/frontend/src/app/main/ui/render.cljs
+++ b/frontend/src/app/main/ui/render.cljs
@@ -80,8 +80,8 @@
 
     (mf/use-effect
      (mf/deps width height)
-     #(dom/set-page-style {:size (str (mth/round width) "px "
-                                      (mth/round height) "px")}))
+     #(dom/set-page-style {:size (str (mth/ceil (+ width padding padding)) "px "
+                                      (mth/ceil (+ height padding padding)) "px")}))
 
     [:& (mf/provider embed/context) {:value true}
      [:svg {:id "screenshot"
diff --git a/frontend/src/app/util/dom.cljs b/frontend/src/app/util/dom.cljs
index 91ff3ab2e2..5c3074e14a 100644
--- a/frontend/src/app/util/dom.cljs
+++ b/frontend/src/app/util/dom.cljs
@@ -55,6 +55,10 @@
     (.insertAdjacentHTML head "beforeend"
                          (str "<style>"
                               "  @page {" style-str "}"
+                              "  html, body {"            ; Fix issue having Chromium to add random 1px marging at the bottom
+                              "    overflow: hidden;"     ; https://github.com/puppeteer/puppeteer/issues/2278#issuecomment-410381934
+                              "    font-size: 0;"
+                              "  }"
                               "</style>"))))
 
 (defn get-element-by-class