diff --git a/src/calibre/ebooks/comic/input.py b/src/calibre/ebooks/comic/input.py
index 7710d41fb3..56fa123249 100755
--- a/src/calibre/ebooks/comic/input.py
+++ b/src/calibre/ebooks/comic/input.py
@@ -131,9 +131,12 @@ class PageProcessor(list): # {{{
                     newsizey = int(newsizex / aspect)
                     deltax = 0
                     deltay = (SCRHEIGHT - newsizey) / 2
-                wand.size = (newsizex, newsizey)
-                wand.set_border_color(pw)
-                wand.add_border(pw, deltax, deltay)
+                if newsizex < 20000 and newsizey < 20000:
+                    # Too large and resizing fails, so better
+                    # to leave it as original size
+                    wand.size = (newsizex, newsizey)
+                    wand.set_border_color(pw)
+                    wand.add_border(pw, deltax, deltay)
             elif self.opts.wide:
                 # Keep aspect and Use device height as scaled image width so landscape mode is clean
                 aspect = float(sizex) / float(sizey)
@@ -152,11 +155,15 @@ class PageProcessor(list): # {{{
                     newsizey = int(newsizex / aspect)
                     deltax = 0
                     deltay = (wscreeny - newsizey) / 2
-                wand.size = (newsizex, newsizey)
-                wand.set_border_color(pw)
-                wand.add_border(pw, deltax, deltay)
+                if newsizex < 20000 and newsizey < 20000:
+                    # Too large and resizing fails, so better
+                    # to leave it as original size
+                    wand.size = (newsizex, newsizey)
+                    wand.set_border_color(pw)
+                    wand.add_border(pw, deltax, deltay)
             else:
-                wand.size = (SCRWIDTH, SCRHEIGHT)
+                if SCRWIDTH < 20000 and SCRHEIGHT < 20000:
+                    wand.size = (SCRWIDTH, SCRHEIGHT)
 
             if not self.opts.dont_sharpen:
                 wand.sharpen(0.0, 1.0)