diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,30 +1,21 @@
-Copyright Arbor Networks (c) 2018
-
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
+The MIT License (MIT)
 
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
+Copyright (c) 2018 Arbor Networks
 
-    * Redistributions in binary form must reproduce the above
-      copyright notice, this list of conditions and the following
-      disclaimer in the documentation and/or other materials provided
-      with the distribution.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
 
-    * Neither the name of Alexey Raga nor the names of other
-      contributors may be used to endorse or promote products derived
-      from this software without specific prior written permission.
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
 
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/antiope-s3.cabal b/antiope-s3.cabal
--- a/antiope-s3.cabal
+++ b/antiope-s3.cabal
@@ -2,10 +2,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 19b4fae3538865f4994cfed0107b02fc384b3dafdfd9bd9b571193876b5134b2
+-- hash: ffe49f5ed92045faacaef34f9862c4d951852c4549f7f680a2771e2b2a77400e
 
 name:           antiope-s3
-version:        6.1.1
+version:        6.1.2
 description:    Please see the README on Github at <https://github.com/arbor/antiope#readme>
 category:       Services
 homepage:       https://github.com/arbor/antiope#readme
diff --git a/src/Antiope/S3/Strict.hs b/src/Antiope/S3/Strict.hs
--- a/src/Antiope/S3/Strict.hs
+++ b/src/Antiope/S3/Strict.hs
@@ -4,6 +4,10 @@
   ( unsafeDownload
   , download
   , downloadFromS3Uri
+
+  , unsafeDownloadMap
+  , downloadMap
+  , downloadMapFromS3Uri
   ) where
 
 import Antiope.Core                 ()
@@ -34,3 +38,23 @@
   => S3Uri
   -> m (Maybe BS.ByteString)
 downloadFromS3Uri s3Uri = runResourceT $ (LBS.toStrict <$!>) <$!> LBS.downloadFromS3Uri s3Uri
+
+unsafeDownloadMap :: (MonadAWS m, MonadUnliftIO m)
+  => (LBS.ByteString -> LBS.ByteString)
+  -> AWS.BucketName
+  -> AWS.ObjectKey
+  -> m BS.ByteString
+unsafeDownloadMap f bucketName objectKey = runResourceT $ LBS.toStrict <$!> (f <$> LBS.unsafeDownload bucketName objectKey)
+
+downloadMap :: (MonadAWS m, MonadUnliftIO m)
+  => (LBS.ByteString -> LBS.ByteString)
+  -> AWS.BucketName
+  -> AWS.ObjectKey
+  -> m (Maybe BS.ByteString)
+downloadMap f bucketName objectKey = runResourceT $ (LBS.toStrict <$!>) <$!> (fmap f <$> LBS.download bucketName objectKey)
+
+downloadMapFromS3Uri :: (MonadAWS m, MonadUnliftIO m)
+  => (LBS.ByteString -> LBS.ByteString)
+  -> S3Uri
+  -> m (Maybe BS.ByteString)
+downloadMapFromS3Uri f s3Uri = runResourceT $ (LBS.toStrict <$!>) <$!> (fmap f <$> LBS.downloadFromS3Uri s3Uri)