diff --git a/src/Yesod/Content/PDF.hs b/src/Yesod/Content/PDF.hs
--- a/src/Yesod/Content/PDF.hs
+++ b/src/Yesod/Content/PDF.hs
@@ -16,6 +16,7 @@
   , wkLowQuality
   , wkPageSize
   , wkOrientation
+  , wkDisableSmartShrinking
   , wkTitle
   , wkMarginBottom
   , wkMarginLeft
@@ -105,6 +106,8 @@
       -- ^ Page size (e.g. "A4", "Letter").
     , wkOrientation     :: Orientation
       -- ^ Orientation of the output.
+    , wkDisableSmartShrinking  :: Bool
+      -- ^ Intelligent shrinking strategy used by WebKit that makes the pixel/dpi ratio none constant.
     , wkTitle           :: Maybe String
       -- ^ Title of the generated PDF file.
     , wkMarginBottom    :: UnitReal
@@ -125,20 +128,21 @@
 
 instance Default WkhtmltopdfOptions where
   def = WkhtmltopdfOptions
-    { wkCollate         = True
-    , wkCopies          = 1
-    , wkGrayscale       = False
-    , wkLowQuality      = False
-    , wkPageSize        = A4
-    , wkOrientation     = Portrait
-    , wkTitle           = Nothing
-    , wkMarginBottom    = Mm 10
-    , wkMarginLeft      = Mm 0
-    , wkMarginRight     = Mm 0
-    , wkMarginTop       = Mm 10
-    , wkZoom            = 1
-    , wkJavascriptDelay = Nothing
-    , wkWindowStatus    = Nothing
+    { wkCollate               = True
+    , wkCopies                = 1
+    , wkGrayscale             = False
+    , wkLowQuality            = False
+    , wkPageSize              = A4
+    , wkOrientation           = Portrait
+    , wkDisableSmartShrinking = False
+    , wkTitle                 = Nothing
+    , wkMarginBottom          = Mm 10
+    , wkMarginLeft            = Mm 0
+    , wkMarginRight           = Mm 0
+    , wkMarginTop             = Mm 10
+    , wkZoom                  = 1
+    , wkJavascriptDelay       = Nothing
+    , wkWindowStatus          = Nothing
     }
 
 -- | Cf. 'wkPageSize'.
@@ -176,6 +180,7 @@
       Prelude.concat
        [ [ "--grayscale"  | True <- [wkGrayscale  opts] ]
        , [ "--lowquality" | True <- [wkLowQuality opts] ]
+       , [ "--disable-smart-shrinking" | True <- [wkLowQuality opts] ]
        , toArgs (wkPageSize    opts)
        , toArgs (wkOrientation opts)
        , maybe [] (\t -> ["--title",            t     ]) (wkTitle           opts)
diff --git a/test/Yesod/Content/PDFSpec.hs b/test/Yesod/Content/PDFSpec.hs
new file mode 100644
--- /dev/null
+++ b/test/Yesod/Content/PDFSpec.hs
@@ -0,0 +1,20 @@
+-- |
+
+module Yesod.Content.PDFSpec (main, spec) where
+
+import Test.Hspec
+import Yesod.Content.PDF
+import Data.ByteString.UTF8 (toString)
+import Text.Blaze.Html
+
+main :: IO ()
+main = hspec spec
+
+h :: Html
+h = toHtml ("<html><body>Hello World</body></html>" :: String)
+
+spec :: Spec
+spec = do
+  describe "generate PDF from HTML document" $ do
+    it "should generate PDF from html document" $ do
+      (fmap ((take 8) . toString . pdfBytes) (html2PDF def h)) `shouldReturn` ("%PDF-1.4" :: String)
diff --git a/yesod-content-pdf.cabal b/yesod-content-pdf.cabal
--- a/yesod-content-pdf.cabal
+++ b/yesod-content-pdf.cabal
@@ -1,7 +1,7 @@
 name:                yesod-content-pdf
-version:             0.2.0.3
+version:             0.2.0.4
 synopsis:            PDF Content Type for Yesod
-description:         Please see README.md
+description:         Provides a PDF content type for integrating wkhtmltopdf with Yesod apps. Please see README.md for further details.
 homepage:            https://github.com/alexkyllo/yesod-content-pdf#readme
 license:             BSD3
 license-file:        LICENSE
@@ -41,6 +41,7 @@
   hs-source-dirs:      test
   main-is:             Spec.hs
   default-extensions:  OverloadedStrings
+  other-modules:       Yesod.Content.PDFSpec
   build-depends:       base
                      , yesod-content-pdf
                      , hspec
