diff --git a/components/content/PubConf.js b/components/content/PubConf.js
index d6220a21e..c1d7160bc 100644
--- a/components/content/PubConf.js
+++ b/components/content/PubConf.js
@@ -56,7 +56,7 @@ const PubConf = (props) => (
       </strong>
     </p>
     <img
-      src="/static/banners/pubconf.png"
+      src="/static/banners/pubconf.jpg"
       alt="PubConf Nottingham Banner"
       className="picture"
     />
diff --git a/pages/index.js b/pages/index.js
index 81ecf2056..07411c261 100644
--- a/pages/index.js
+++ b/pages/index.js
@@ -27,7 +27,7 @@ export default () => (
             <Header
               title={'DDD East Midlands'}
               banner="
-        /static/banners/pride-header.png"
+        /static/banners/pride-header.jpg"
             />
           );
           break;
@@ -47,7 +47,7 @@ export default () => (
             <Header
               title={'DDD East Midlands'}
               banner="
-        /static/banners/christmas-header.png"
+        /static/banners/christmas-header.jpg"
             />
           );
           break;
diff --git a/pages/information/speaker-information.js b/pages/information/speaker-information.js
index 762d776f3..4b654d8db 100644
--- a/pages/information/speaker-information.js
+++ b/pages/information/speaker-information.js
@@ -154,19 +154,19 @@ export default () => (
       <h2 tabIndex="0">Rooms</h2>
 
       <h4 tabIndex="0">Room 1 (Lecture Theatre 2)</h4>
-      <FullWidthImage url={'/static/rooms/LT2.png'} />
+      <FullWidthImage url={'/static/rooms/LT2.jpg'} />
       <p tabIndex="0">
         <strong>Seats:</strong> up to 470 people
       </p>
 
       <h4 tabIndex="0">Room 2 (Lecture Theatre 4)</h4>
-      <FullWidthImage url={'/static/rooms/LT4.png'} />
+      <FullWidthImage url={'/static/rooms/LT4.jpg'} />
       <p tabIndex="0">
         <strong>Seats:</strong> up to 100 people
       </p>
 
       <h4 tabIndex="0">Room 3 (Lecture Theatre 5)</h4>
-      <FullWidthImage url={'/static/rooms/LT5.png'} />
+      <FullWidthImage url={'/static/rooms/LT5.jpg'} />
       <p tabIndex="0">
         <strong>Seats:</strong> up to 100 people
       </p>
diff --git a/public/static/banners/album.jpg b/public/static/banners/album.jpg
index 42aaa40f8..34c63aa3e 100644
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diff --git a/public/static/banners/autumn-header.jpg b/public/static/banners/autumn-header.jpg
index ab73edfd4..4e914e933 100644
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diff --git a/public/static/banners/christmas-header.jpg b/public/static/banners/christmas-header.jpg
new file mode 100644
index 000000000..7904421ff
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diff --git a/public/static/banners/christmas-header.png b/public/static/banners/christmas-header.png
index aebd8b6f0..ed1dc5df6 100644
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diff --git a/public/static/banners/coc.jpg b/public/static/banners/coc.jpg
index bbf432f77..061bac94c 100644
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diff --git a/public/static/banners/contact.jpg b/public/static/banners/contact.jpg
index 0648fde12..7f4dcb898 100644
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diff --git a/public/static/banners/home.jpg b/public/static/banners/home.jpg
index 6a3428900..84b102c5b 100644
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diff --git a/public/static/banners/information/accessibility.jpg b/public/static/banners/information/accessibility.jpg
index ee33fd9b8..2a334322f 100644
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diff --git a/public/static/banners/information/apply.jpg b/public/static/banners/information/apply.jpg
index c63643753..be51d1ebd 100644
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diff --git a/public/static/banners/information/attendee.jpg b/public/static/banners/information/attendee.jpg
index bfb403939..7a216d979 100644
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diff --git a/public/static/banners/information/crew.jpg b/public/static/banners/information/crew.jpg
index 514b6b73d..e06f90b91 100644
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diff --git a/public/static/banners/information/hacktober.jpg b/public/static/banners/information/hacktober.jpg
index af2453f3f..ef698bff8 100644
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diff --git a/public/static/banners/information/header.jpg b/public/static/banners/information/header.jpg
index 9e15d7689..0ca4c0c1e 100644
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diff --git a/public/static/banners/information/organisers.jpg b/public/static/banners/information/organisers.jpg
index 5fa6f32b1..8697b3236 100644
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diff --git a/public/static/banners/information/speakers.jpg b/public/static/banners/information/speakers.jpg
index 244b61fe3..1223fc90e 100644
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diff --git a/public/static/banners/information/sponsor.jpg b/public/static/banners/information/sponsor.jpg
index 00907df29..e31b5c3eb 100644
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diff --git a/public/static/banners/information/swagbag.jpg b/public/static/banners/information/swagbag.jpg
index ae9218fca..2d73029d9 100644
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diff --git a/public/static/banners/information/thencc.jpg b/public/static/banners/information/thencc.jpg
index 674957276..01be21efe 100644
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diff --git a/public/static/banners/notable.jpg b/public/static/banners/notable.jpg
index e2d396768..8d72dde18 100644
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diff --git a/public/static/banners/pride-header.jpg b/public/static/banners/pride-header.jpg
new file mode 100644
index 000000000..31d706110
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diff --git a/public/static/banners/pride-header.png b/public/static/banners/pride-header.png
index 96aa9d0f2..31227037a 100644
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diff --git a/public/static/banners/pubconf.jpg b/public/static/banners/pubconf.jpg
new file mode 100644
index 000000000..d6309eac5
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diff --git a/public/static/banners/pubconf.png b/public/static/banners/pubconf.png
index 72ef9f119..0a59775b9 100644
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diff --git a/public/static/banners/sponsor.jpg b/public/static/banners/sponsor.jpg
index f1640a6c3..6555433a7 100644
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diff --git a/public/static/banners/talks.jpg b/public/static/banners/talks.jpg
index 011537aed..af30ec82b 100644
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diff --git a/public/static/rooms/LT2.jpg b/public/static/rooms/LT2.jpg
new file mode 100644
index 000000000..b8aae7104
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diff --git a/public/static/rooms/LT4.jpg b/public/static/rooms/LT4.jpg
index ddcd1e5bd..9e181635b 100644
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diff --git a/public/static/rooms/LT4_Back.jpg b/public/static/rooms/LT4_Back.jpg
index 18f6619f4..30c6638fc 100644
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diff --git a/public/static/rooms/LT5.jpg b/public/static/rooms/LT5.jpg
index 21c2f9462..bf5a910c1 100644
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diff --git a/public/static/rooms/LT5_Back.jpg b/public/static/rooms/LT5_Back.jpg
index f4b1ab777..3bf4473d1 100644
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