diff --git a/filter/Main.hs b/filter/Main.hs
--- a/filter/Main.hs
+++ b/filter/Main.hs
@@ -3,7 +3,5 @@
 import Text.Pandoc.JSON
 
 main :: IO ()
-main = toJSONFilter $ convertFormulaDataURI 2 defaultEnv fopts
- where fopts InlineMath  = math
-       fopts DisplayMath = displaymath
+main = toJSONFilter $ convertFormulaDataURI defaultEnv defaultPandocFormulaOptions
 
diff --git a/latex-formulae-pandoc.cabal b/latex-formulae-pandoc.cabal
--- a/latex-formulae-pandoc.cabal
+++ b/latex-formulae-pandoc.cabal
@@ -1,5 +1,5 @@
 name:                latex-formulae-pandoc
-version:             0.1.1.0
+version:             0.2.0.0
 synopsis:            Render LaTeX formulae in pandoc documents to images with an actual LaTeX installation
 description:         This library provides utility functions to convert LaTeX equations to images in Pandoc documents using the @latex-formulae-image@ package.
                      It requires an actual LaTeX installation to work (@latex@,@dvips@), along with ImageMagick's @convert@ (which needs to understand PostScript)
diff --git a/src/Image/LaTeX/Render/Pandoc.hs b/src/Image/LaTeX/Render/Pandoc.hs
--- a/src/Image/LaTeX/Render/Pandoc.hs
+++ b/src/Image/LaTeX/Render/Pandoc.hs
@@ -9,8 +9,13 @@
          -- ** Name Supplies
        , NameSupply
        , newNameSupply
-         -- * Scaling
+         -- * Options
+       , PandocFormulaOptions(..)
        , ShrinkSize
+       , defaultPandocFormulaOptions
+         -- ** Error display functions
+       , hideError
+       , displayError
          -- * Generalised versions
          -- ** Data URIs
        , convertFormulaDataURIWith
@@ -45,6 +50,26 @@
 dimensions (ImageYA16 i)   = dims i
 dimensions _               = error "Unsupported image format somehow!"
 
+
+-- | All options pertaining to the actual display of formulae. 
+data PandocFormulaOptions = PandocFormulaOptions
+        { shrinkBy       :: ShrinkSize
+          -- ^ Denominator for all dimensions. Useful for displaying high DPI images in small sizes, for retina displays. Otherwise set to 1.
+        , errorDisplay   :: RenderError -> Inline
+          -- ^ How to display various errors (such as LaTeX errors). Usually this can just be @displayError@ but you may wish @hideError@
+          --   to avoid putting potentially secure information into the output page.
+        , formulaOptions :: MathType -> FormulaOptions
+          -- ^ LaTeX environment settings, including the preamble, for each equation type (display and inline)
+        }
+
+-- | A set of sensible defaults for formula options.
+defaultPandocFormulaOptions :: PandocFormulaOptions
+defaultPandocFormulaOptions = PandocFormulaOptions
+   { shrinkBy = 2
+   , errorDisplay = displayError
+   , formulaOptions = \case DisplayMath -> displaymath; _ -> math
+   }
+
 -- | Denominator for various dimensions. For high DPI displays, it can be useful to use values of 2 or 4, so that the dimensions
 --   of the image are a fraction of the actual image size, and the image appears more crisp. Otherwise, a value of 1 will always
 --   produce sensible, if somewhat pixelated results.
@@ -52,52 +77,48 @@
 
 -- | Convert a formula in a pandoc document to an image, embedding the image into the HTML using Data URIs.
 convertFormulaDataURI
-  :: ShrinkSize                   -- ^ Denominator for all dimensions. Useful for displaying high DPI images in small sizes, for retina displays. Otherwise set to 1.
-  -> EnvironmentOptions           -- ^ System environment settings
-  -> (MathType -> FormulaOptions) -- ^ LaTeX environment settings for each equation type (display and inline)
+  :: EnvironmentOptions           -- ^ System environment settings
+  -> PandocFormulaOptions         -- ^ Formula display settings
   -> Inline -> IO Inline
-convertFormulaDataURI sh o1 = convertFormulaDataURIWith (imageForFormula o1) sh
+convertFormulaDataURI = convertFormulaDataURIWith . imageForFormula
 
 -- | Convert all formulae in a pandoc document to images, embedding the images into the HTML using Data URIs.
 convertAllFormulaeDataURI
-  :: ShrinkSize                   -- ^ Denominator for all dimensions. Useful for displaying high DPI images in small sizes, for retina displays. Otherwise set to 1.
-  -> EnvironmentOptions           -- ^ System environment settings
-  -> (MathType -> FormulaOptions) -- ^ LaTeX environment settings for each equation type (display and inline)
+  :: EnvironmentOptions           -- ^ System environment settings
+  -> PandocFormulaOptions         -- ^ Formula display settings
   -> Pandoc -> IO Pandoc
-convertAllFormulaeDataURI a b c = walkM $ convertFormulaDataURI a b c
+convertAllFormulaeDataURI e = walkM . convertFormulaDataURI e
 
 -- | A generalisation of 'convertFormulaDataURI' which allows the actual image rendering
 --   function to be customised, so that (e.g) caching can be added or other image processing.
 convertFormulaDataURIWith
   :: (FormulaOptions -> Formula -> IO (Either RenderError (Baseline, DynamicImage)))
      -- ^ Function that renders a formula, such as @imageForFormula defaultEnv@
-  -> ShrinkSize                   -- ^ Denominator for all dimensions. Useful for displaying high DPI images in small sizes, for retina displays. Otherwise set to 1.
-  -> (MathType -> FormulaOptions) -- ^ LaTeX environment settings for each equation type (display and inline)
+  -> PandocFormulaOptions -- ^ Formula display settings
   -> Inline -> IO Inline
-convertFormulaDataURIWith f sh o (Math t s) = f (o t) s >>= \case
+convertFormulaDataURIWith f o (Math t s) = f (formulaOptions o t) s >>= \case
    Left e -> return $ Str (show e)
    Right (b,i) -> let
        Right bs = encodeDynamicPng i
        dataUri = "data:image/png;base64," ++ BS.unpack (B64.encode bs)
        (ow,oh) = dimensions i
-       (w,h) = (ow `div` sh, oh `div` sh)
+       (w,h) = (ow `div` shrinkBy o, oh `div` shrinkBy o)
      in return $ RawInline (Format "html") $
         "<img width="  ++ show w ++
             " height=" ++ show h ++
             " src=\""  ++ dataUri ++ "\"" ++
             " class="  ++ (case t of InlineMath -> "inline-math"; _ -> "display-math") ++
-            " style=\"margin:0; vertical-align:-" ++ show (b `div` sh) ++ "px;\"/>"
-convertFormulaDataURIWith _ _ _ x = return x
+            " style=\"margin:0; vertical-align:-" ++ show (b `div` shrinkBy o) ++ "px;\"/>"
+convertFormulaDataURIWith _ _ x = return x
 
 -- | A generalisation of 'convertAllFormulaeDataURI' which allows the actual image rendering
 --   function to be customised, so that (e.g) caching can be added or other image processing.
 convertAllFormulaeDataURIWith
   :: (FormulaOptions -> Formula -> IO (Either RenderError (Baseline, DynamicImage)))
      -- ^ Function that renders a formula, such as @imageForFormula defaultEnv@
-  -> ShrinkSize                   -- ^ Denominator for all dimensions. Useful for displaying high DPI images in small sizes, for retina displays. Otherwise set to 1.
-  -> (MathType -> FormulaOptions) -- ^ LaTeX environment settings for each equation type (display and inline)
+  -> PandocFormulaOptions -- ^ Formula display settings
   -> Pandoc -> IO Pandoc
-convertAllFormulaeDataURIWith a b c = walkM $ convertFormulaDataURIWith a b c
+convertAllFormulaeDataURIWith f = walkM . convertFormulaDataURIWith f
 
 -- | If we use files for the images, we need some way of naming the image files we produce
 --   A NameSupply provides us with a source of unique names via an ever-increasing integer.
@@ -113,58 +134,73 @@
 -- | A generalisation of 'convertFormulaFiles' which allows the actual image rendering
 --   function to be customised, so that (e.g) caching can be added or other image processing.
 convertFormulaFilesWith
-  :: NameSupply                   -- ^ Unique file name supply. Reuse this for every invocation that shares the same image directory.
-  -> FilePath                     -- ^ Name of image directory where images will be stored
-  -> ShrinkSize                   -- ^ Denominator for all dimensions. Useful for displaying high DPI images in small sizes, for retina displays. Otherwise set to 1.
-  -> (FormulaOptions -> Formula -> IO (Either RenderError (Baseline, DynamicImage)))
+  :: (FormulaOptions -> Formula -> IO (Either RenderError (Baseline, DynamicImage)))
      -- ^ Function that renders a formula, such as @imageForFormula defaultEnv@
-  -> (MathType -> FormulaOptions) -- ^ LaTeX environment settings for each equation type (display and inline)
+  -> NameSupply                   -- ^ Unique file name supply. Reuse this for every invocation that shares the same image directory.
+  -> FilePath                     -- ^ Name of image directory where images will be stored
+  -> PandocFormulaOptions         -- ^ Formula display settings
   -> Inline -> IO Inline
-convertFormulaFilesWith ns bn sh f o (Math t s) = f (o t) s >>= \case
+convertFormulaFilesWith f ns bn o (Math t s) = f (formulaOptions o t) s >>= \case
    Left e -> return $ Str (show e)
    Right (b,i) -> do
      fn <- readIORef ns
      modifyIORef ns (+1)
      let uri = bn </> show fn <.> "png"
          (ow,oh) = dimensions i
-         (w,h) = (ow `div` sh, oh `div` sh)
+         (w,h) = (ow `div` shrinkBy o, oh `div` shrinkBy o)
      _ <- writeDynamicPng uri i
      return $ RawInline (Format "html") $
         "<img width="  ++ show w ++
             " height=" ++ show h ++
             " src=\""  ++ uri ++ "\"" ++
             " class="  ++ (case t of InlineMath -> "inline-math"; _ -> "display-math") ++
-            " style=\"margin:0; vertical-align:-" ++ show (b `div` sh) ++ "px;\"/>"
-convertFormulaFilesWith _ _ _ _ _ x = return x
+            " style=\"margin:0; vertical-align:-" ++ show (b `div` shrinkBy o) ++ "px;\"/>"
+convertFormulaFilesWith _ _ _ _ x = return x
 
 -- | Convert a formula in a pandoc document to an image, storing the images in a separate directory.
 convertFormulaFiles
-  :: NameSupply                   -- ^ Unique file name supply. Reuse this for every invocation that shares the same image directory.
+  :: EnvironmentOptions           -- ^ System environment settings
+  -> NameSupply                   -- ^ Unique file name supply. Reuse this for every invocation that shares the same image directory.
   -> FilePath                     -- ^ Name of image directory where images will be stored
-  -> ShrinkSize                   -- ^ Denominator for all dimensions. Useful for displaying high DPI images in small sizes, for retina displays. Otherwise set to 1.
-  -> EnvironmentOptions           -- ^ System environment settings
-  -> (MathType -> FormulaOptions) -- ^ LaTeX environment settings for each equation type (display and inline)
+  -> PandocFormulaOptions         -- ^ Formula display settings
   -> Inline -> IO Inline
-convertFormulaFiles ns fp ss eo = convertFormulaFilesWith ns fp ss (imageForFormula eo)
+convertFormulaFiles = convertFormulaFilesWith . imageForFormula
 
 -- | Convert every formula in a pandoc document to an image, storing the images in a separate directory.
 convertAllFormulaeFiles
-  :: NameSupply                   -- ^ Unique file name supply. Reuse this for every invocation that shares the same image directory.
+  :: EnvironmentOptions           -- ^ System environment settings
+  -> NameSupply                   -- ^ Unique file name supply. Reuse this for every invocation that shares the same image directory.
   -> FilePath                     -- ^ Name of image directory where images will be stored
-  -> ShrinkSize                   -- ^ Denominator for all dimensions. Useful for displaying high DPI images in small sizes, for retina displays. Otherwise set to 1.
-  -> EnvironmentOptions           -- ^ System environment settings
-  -> (MathType -> FormulaOptions) -- ^ LaTeX environment settings for each equation type (display and inline)
+  -> PandocFormulaOptions         -- ^ Formula display settings
   -> Pandoc -> IO Pandoc
-convertAllFormulaeFiles x y a b c = walkM $ convertFormulaFiles x y a b c
+convertAllFormulaeFiles eo ns fp = walkM . convertFormulaFiles eo ns fp
 
 -- | A generalisation of 'convertAllFormulaeFiles' which allows the actual image rendering
 --   function to be customised, so that (e.g) caching can be added or other image processing.
 convertAllFormulaeFilesWith
-  :: NameSupply                   -- ^ Unique file name supply. Reuse this for every invocation that shares the same image directory.
-  -> FilePath                     -- ^ Name of image directory where images will be stored
-  -> ShrinkSize                   -- ^ Denominator for all dimensions. Useful for displaying high DPI images in small sizes, for retina displays. Otherwise set to 1.
-  -> (FormulaOptions -> Formula -> IO (Either RenderError (Baseline, DynamicImage)))
+  :: (FormulaOptions -> Formula -> IO (Either RenderError (Baseline, DynamicImage)))
      -- ^ Function that renders a formula, such as @imageForFormula defaultEnv@
-  -> (MathType -> FormulaOptions) -- ^ LaTeX environment settings for each equation type (display and inline)
+  -> NameSupply                   -- ^ Unique file name supply. Reuse this for every invocation that shares the same image directory.
+  -> FilePath                     -- ^ Name of image directory where images will be stored
+  -> PandocFormulaOptions         -- ^ Formula display settings
   -> Pandoc -> IO Pandoc
-convertAllFormulaeFilesWith x y a b c = walkM $ convertFormulaFilesWith x y a b c
+convertAllFormulaeFilesWith x y a = walkM . convertFormulaFilesWith x y a
+
+-- | Render all errors simply as "Error"
+hideError :: RenderError -> Inline
+hideError = const $ Str blank
+  where
+    blank = "Error"
+
+-- | Render errors nicely, in order to show any problems clearly, with all information intact.
+displayError :: RenderError -> Inline
+displayError ImageIsEmpty           = pandocError  [Str "The rendered image was empty"]
+displayError CannotDetectBaseline   = pandocError [Str "Cannot detect baseline in rendered image"]
+displayError (LaTeXFailure str)     = pandocError [Str "LaTeX failed:", LineBreak, Code nullAttr str]
+displayError (DVIPSFailure str)     = pandocError [Str "DVIPS failed:", LineBreak, Code nullAttr str]
+displayError (IMConvertFailure str) = pandocError [Str "convert failed:", LineBreak, Code nullAttr str]
+displayError (ImageReadError str)   = pandocError [Str "Error reading image:", LineBreak, Code nullAttr str]
+displayError (IOException e)        = pandocError [Str "IO Exception:", LineBreak, Code nullAttr $ show e]
+
+pandocError :: [Inline] -> Inline
+pandocError = Strong . (Emph [Str "Error:"] :)