diff --git a/services/web/frontend/stylesheets/_style_includes.less b/services/web/frontend/stylesheets/_style_includes.less
index 009cd34e92..0c10548b0b 100644
--- a/services/web/frontend/stylesheets/_style_includes.less
+++ b/services/web/frontend/stylesheets/_style_includes.less
@@ -7,13 +7,7 @@
 @import 'core/print.less';
 
 // Vendor CSS
-@import (less) 'vendor/pdfListView/TextLayer.css';
-@import (less) 'vendor/pdfListView/AnnotationsLayer.css';
-@import (less) 'vendor/pdfListView/HighlightsLayer.css';
 @import (less) 'vendor/select/select.css';
-@import (less) 'vendor/codemirror.css';
-@import (less) 'vendor/codemirror-dialog.css';
-@import (less) 'vendor/codemirror-show-hint.css';
 
 // Core CSS
 @import 'core/scaffolding.less';
diff --git a/services/web/frontend/stylesheets/app/editor/pdf.less b/services/web/frontend/stylesheets/app/editor/pdf.less
index 3356e0beb6..af6ee5946d 100644
--- a/services/web/frontend/stylesheets/app/editor/pdf.less
+++ b/services/web/frontend/stylesheets/app/editor/pdf.less
@@ -549,16 +549,6 @@
   display: inline-block;
 }
 
-.plv-text-layer {
-  display: none;
-  user-select: text;
-
-  .pdf-page-container:hover &,
-  .pdfjs-viewer-show-text & {
-    display: block;
-  }
-}
-
 @editor-and-logs-pane-toolbars-height: @toolbar-small-height + @toolbar-height;
 @btn-small-height: (@padding-small-vertical * 2)+ (@font-size-small *
       @line-height-small);
diff --git a/services/web/frontend/stylesheets/main-style.less b/services/web/frontend/stylesheets/main-style.less
index 4589142c2e..679f2b6d04 100644
--- a/services/web/frontend/stylesheets/main-style.less
+++ b/services/web/frontend/stylesheets/main-style.less
@@ -21,13 +21,7 @@
 @import 'core/print.less';
 
 // Vendor CSS
-@import (less) 'vendor/pdfListView/TextLayer.css';
-@import (less) 'vendor/pdfListView/AnnotationsLayer.css';
-@import (less) 'vendor/pdfListView/HighlightsLayer.css';
 @import (less) 'vendor/select/select.css';
-@import (less) 'vendor/codemirror.css';
-@import (less) 'vendor/codemirror-dialog.css';
-@import (less) 'vendor/codemirror-show-hint.css';
 
 // Core CSS
 @import 'core/page.less';
diff --git a/services/web/frontend/stylesheets/vendor/codemirror-dialog.css b/services/web/frontend/stylesheets/vendor/codemirror-dialog.css
deleted file mode 100644
index 677c078387..0000000000
--- a/services/web/frontend/stylesheets/vendor/codemirror-dialog.css
+++ /dev/null
@@ -1,32 +0,0 @@
-.CodeMirror-dialog {
-  position: absolute;
-  left: 0; right: 0;
-  background: inherit;
-  z-index: 15;
-  padding: .1em .8em;
-  overflow: hidden;
-  color: inherit;
-}
-
-.CodeMirror-dialog-top {
-  border-bottom: 1px solid #eee;
-  top: 0;
-}
-
-.CodeMirror-dialog-bottom {
-  border-top: 1px solid #eee;
-  bottom: 0;
-}
-
-.CodeMirror-dialog input {
-  border: none;
-  outline: none;
-  background: transparent;
-  width: 20em;
-  color: inherit;
-  font-family: monospace;
-}
-
-.CodeMirror-dialog button {
-  font-size: 70%;
-}
diff --git a/services/web/frontend/stylesheets/vendor/codemirror-show-hint.css b/services/web/frontend/stylesheets/vendor/codemirror-show-hint.css
deleted file mode 100644
index 5617ccca2b..0000000000
--- a/services/web/frontend/stylesheets/vendor/codemirror-show-hint.css
+++ /dev/null
@@ -1,36 +0,0 @@
-.CodeMirror-hints {
-  position: absolute;
-  z-index: 10;
-  overflow: hidden;
-  list-style: none;
-
-  margin: 0;
-  padding: 2px;
-
-  -webkit-box-shadow: 2px 3px 5px rgba(0,0,0,.2);
-  -moz-box-shadow: 2px 3px 5px rgba(0,0,0,.2);
-  box-shadow: 2px 3px 5px rgba(0,0,0,.2);
-  border-radius: 3px;
-  border: 1px solid silver;
-
-  background: white;
-  font-size: 90%;
-  font-family: monospace;
-
-  max-height: 20em;
-  overflow-y: auto;
-}
-
-.CodeMirror-hint {
-  margin: 0;
-  padding: 0 4px;
-  border-radius: 2px;
-  white-space: pre;
-  color: black;
-  cursor: pointer;
-}
-
-li.CodeMirror-hint-active {
-  background: #08f;
-  color: white;
-}
diff --git a/services/web/frontend/stylesheets/vendor/codemirror.css b/services/web/frontend/stylesheets/vendor/codemirror.css
deleted file mode 100644
index 1caaa8a0fd..0000000000
--- a/services/web/frontend/stylesheets/vendor/codemirror.css
+++ /dev/null
@@ -1,346 +0,0 @@
-/* BASICS */
-
-.CodeMirror {
-  /* Set height, width, borders, and global font properties here */
-  font-family: monospace;
-  height: 300px;
-  color: black;
-  direction: ltr;
-}
-
-/* PADDING */
-
-.CodeMirror-lines {
-  padding: 4px 0; /* Vertical padding around content */
-}
-.CodeMirror pre {
-  padding: 0 4px; /* Horizontal padding of content */
-}
-
-.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
-  background-color: white; /* The little square between H and V scrollbars */
-}
-
-/* GUTTER */
-
-.CodeMirror-gutters {
-  border-right: 1px solid #ddd;
-  background-color: #f7f7f7;
-  white-space: nowrap;
-}
-.CodeMirror-linenumbers {}
-.CodeMirror-linenumber {
-  padding: 0 3px 0 5px;
-  min-width: 20px;
-  text-align: right;
-  color: #999;
-  white-space: nowrap;
-}
-
-.CodeMirror-guttermarker { color: black; }
-.CodeMirror-guttermarker-subtle { color: #999; }
-
-/* CURSOR */
-
-.CodeMirror-cursor {
-  border-left: 1px solid black;
-  border-right: none;
-  width: 0;
-}
-/* Shown when moving in bi-directional text */
-.CodeMirror div.CodeMirror-secondarycursor {
-  border-left: 1px solid silver;
-}
-.cm-fat-cursor .CodeMirror-cursor {
-  width: auto;
-  border: 0 !important;
-  background: #7e7;
-}
-.cm-fat-cursor div.CodeMirror-cursors {
-  z-index: 1;
-}
-.cm-fat-cursor-mark {
-  background-color: rgba(20, 255, 20, 0.5);
-  -webkit-animation: blink 1.06s steps(1) infinite;
-  -moz-animation: blink 1.06s steps(1) infinite;
-  animation: blink 1.06s steps(1) infinite;
-}
-.cm-animate-fat-cursor {
-  width: auto;
-  border: 0;
-  -webkit-animation: blink 1.06s steps(1) infinite;
-  -moz-animation: blink 1.06s steps(1) infinite;
-  animation: blink 1.06s steps(1) infinite;
-  background-color: #7e7;
-}
-@-moz-keyframes blink {
-  0% {}
-  50% { background-color: transparent; }
-  100% {}
-}
-@-webkit-keyframes blink {
-  0% {}
-  50% { background-color: transparent; }
-  100% {}
-}
-@keyframes blink {
-  0% {}
-  50% { background-color: transparent; }
-  100% {}
-}
-
-/* Can style cursor different in overwrite (non-insert) mode */
-.CodeMirror-overwrite .CodeMirror-cursor {}
-
-.cm-tab { display: inline-block; text-decoration: inherit; }
-
-.CodeMirror-rulers {
-  position: absolute;
-  left: 0; right: 0; top: -50px; bottom: -20px;
-  overflow: hidden;
-}
-.CodeMirror-ruler {
-  border-left: 1px solid #ccc;
-  top: 0; bottom: 0;
-  position: absolute;
-}
-
-/* DEFAULT THEME */
-
-.cm-s-default .cm-header {color: blue;}
-.cm-s-default .cm-quote {color: #090;}
-.cm-negative {color: #d44;}
-.cm-positive {color: #292;}
-.cm-header, .cm-strong {font-weight: bold;}
-.cm-em {font-style: italic;}
-.cm-link {text-decoration: underline;}
-.cm-strikethrough {text-decoration: line-through;}
-
-.cm-s-default .cm-keyword {color: #708;}
-.cm-s-default .cm-atom {color: #219;}
-.cm-s-default .cm-number {color: #164;}
-.cm-s-default .cm-def {color: #00f;}
-.cm-s-default .cm-variable,
-.cm-s-default .cm-punctuation,
-.cm-s-default .cm-property,
-.cm-s-default .cm-operator {}
-.cm-s-default .cm-variable-2 {color: #05a;}
-.cm-s-default .cm-variable-3, .cm-s-default .cm-type {color: #085;}
-.cm-s-default .cm-comment {color: #a50;}
-.cm-s-default .cm-string {color: #a11;}
-.cm-s-default .cm-string-2 {color: #f50;}
-.cm-s-default .cm-meta {color: #555;}
-.cm-s-default .cm-qualifier {color: #555;}
-.cm-s-default .cm-builtin {color: #30a;}
-.cm-s-default .cm-bracket {color: #997;}
-.cm-s-default .cm-tag {color: #170;}
-.cm-s-default .cm-attribute {color: #00c;}
-.cm-s-default .cm-hr {color: #999;}
-.cm-s-default .cm-link {color: #00c;}
-
-.cm-s-default .cm-error {color: #f00;}
-.cm-invalidchar {color: #f00;}
-
-.CodeMirror-composing { border-bottom: 2px solid; }
-
-/* Default styles for common addons */
-
-div.CodeMirror span.CodeMirror-matchingbracket {color: #0b0;}
-div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #a22;}
-.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
-.CodeMirror-activeline-background {background: #e8f2ff;}
-
-/* STOP */
-
-/* The rest of this file contains styles related to the mechanics of
-   the editor. You probably shouldn't touch them. */
-
-.CodeMirror {
-  position: relative;
-  overflow: hidden;
-  background: white;
-}
-
-.CodeMirror-scroll {
-  overflow: scroll !important; /* Things will break if this is overridden */
-  /* 30px is the magic margin used to hide the element's real scrollbars */
-  /* See overflow: hidden in .CodeMirror */
-  margin-bottom: -30px; margin-right: -30px;
-  padding-bottom: 30px;
-  height: 100%;
-  outline: none; /* Prevent dragging from highlighting the element */
-  position: relative;
-}
-.CodeMirror-sizer {
-  position: relative;
-  border-right: 30px solid transparent;
-}
-
-/* The fake, visible scrollbars. Used to force redraw during scrolling
-   before actual scrolling happens, thus preventing shaking and
-   flickering artifacts. */
-.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
-  position: absolute;
-  z-index: 7;
-  display: none;
-}
-.CodeMirror-vscrollbar {
-  right: 0; top: 0;
-  overflow-x: hidden;
-  overflow-y: scroll;
-}
-.CodeMirror-hscrollbar {
-  bottom: 0; left: 0;
-  overflow-y: hidden;
-  overflow-x: scroll;
-}
-.CodeMirror-scrollbar-filler {
-  right: 0; bottom: 0;
-}
-.CodeMirror-gutter-filler {
-  left: 0; bottom: 0;
-}
-
-.CodeMirror-gutters {
-  position: absolute; left: 0; top: 0;
-  min-height: 100%;
-  z-index: 3;
-}
-.CodeMirror-gutter {
-  white-space: normal;
-  height: 100%;
-  display: inline-block;
-  vertical-align: top;
-  margin-bottom: -30px;
-}
-.CodeMirror-gutter-wrapper {
-  position: absolute;
-  z-index: 4;
-  background: none !important;
-  border: none !important;
-}
-.CodeMirror-gutter-background {
-  position: absolute;
-  top: 0; bottom: 0;
-  z-index: 4;
-}
-.CodeMirror-gutter-elt {
-  position: absolute;
-  cursor: default;
-  z-index: 4;
-}
-.CodeMirror-gutter-wrapper ::selection { background-color: transparent }
-.CodeMirror-gutter-wrapper ::-moz-selection { background-color: transparent }
-
-.CodeMirror-lines {
-  cursor: text;
-  min-height: 1px; /* prevents collapsing before first draw */
-}
-.CodeMirror pre {
-  /* Reset some styles that the rest of the page might have set */
-  -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
-  border-width: 0;
-  background: transparent;
-  font-family: inherit;
-  font-size: inherit;
-  margin: 0;
-  white-space: pre;
-  word-wrap: normal;
-  line-height: inherit;
-  color: inherit;
-  z-index: 2;
-  position: relative;
-  overflow: visible;
-  -webkit-tap-highlight-color: transparent;
-  -webkit-font-variant-ligatures: contextual;
-  font-variant-ligatures: contextual;
-}
-.CodeMirror-wrap pre {
-  word-wrap: break-word;
-  white-space: pre-wrap;
-  word-break: normal;
-}
-
-.CodeMirror-linebackground {
-  position: absolute;
-  left: 0; right: 0; top: 0; bottom: 0;
-  z-index: 0;
-}
-
-.CodeMirror-linewidget {
-  position: relative;
-  z-index: 2;
-  padding: 0.1px; /* Force widget margins to stay inside of the container */
-}
-
-.CodeMirror-widget {}
-
-.CodeMirror-rtl pre { direction: rtl; }
-
-.CodeMirror-code {
-  outline: none;
-}
-
-/* Force content-box sizing for the elements where we expect it */
-.CodeMirror-scroll,
-.CodeMirror-sizer,
-.CodeMirror-gutter,
-.CodeMirror-gutters,
-.CodeMirror-linenumber {
-  -moz-box-sizing: content-box;
-  box-sizing: content-box;
-}
-
-.CodeMirror-measure {
-  position: absolute;
-  width: 100%;
-  height: 0;
-  overflow: hidden;
-  visibility: hidden;
-}
-
-.CodeMirror-cursor {
-  position: absolute;
-  pointer-events: none;
-}
-.CodeMirror-measure pre { position: static; }
-
-div.CodeMirror-cursors {
-  visibility: hidden;
-  position: relative;
-  z-index: 3;
-}
-div.CodeMirror-dragcursors {
-  visibility: visible;
-}
-
-.CodeMirror-focused div.CodeMirror-cursors {
-  visibility: visible;
-}
-
-.CodeMirror-selected { background: #d9d9d9; }
-.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
-.CodeMirror-crosshair { cursor: crosshair; }
-.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; }
-.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }
-
-.cm-searching {
-  background-color: #ffa;
-  background-color: rgba(255, 255, 0, .4);
-}
-
-/* Used to force a border model for a node */
-.cm-force-border { padding-right: .1px; }
-
-@media print {
-  /* Hide the cursor when printing */
-  .CodeMirror div.CodeMirror-cursors {
-    visibility: hidden;
-  }
-}
-
-/* See issue #2901 */
-.cm-tab-wrap-hack:after { content: ''; }
-
-/* Help users use markselection to safely style text background */
-span.CodeMirror-selectedtext { background: none; }
diff --git a/services/web/frontend/stylesheets/vendor/pdfListView/AnnotationsLayer.css b/services/web/frontend/stylesheets/vendor/pdfListView/AnnotationsLayer.css
deleted file mode 100644
index 6ffd554453..0000000000
--- a/services/web/frontend/stylesheets/vendor/pdfListView/AnnotationsLayer.css
+++ /dev/null
@@ -1,14 +0,0 @@
-.plv-annotations-layer {
-  position: absolute;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  overflow: hidden;
-  pointer-events: none;
-}
-.plv-annotations-layer > a {
-  display: block;
-  position: absolute;
-  pointer-events: auto;
-}
diff --git a/services/web/frontend/stylesheets/vendor/pdfListView/HighlightsLayer.css b/services/web/frontend/stylesheets/vendor/pdfListView/HighlightsLayer.css
deleted file mode 100644
index 88dc386ae7..0000000000
--- a/services/web/frontend/stylesheets/vendor/pdfListView/HighlightsLayer.css
+++ /dev/null
@@ -1,16 +0,0 @@
-.plv-highlights-layer {
-  position: absolute;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  overflow: hidden;
-  pointer-events: none;
-}
-.plv-highlights-layer > div {
-  display: block;
-  position: absolute;
-  pointer-events: auto;
-  background-color: yellow;
-  opacity: 0.4;
-}
diff --git a/services/web/frontend/stylesheets/vendor/pdfListView/TextLayer.css b/services/web/frontend/stylesheets/vendor/pdfListView/TextLayer.css
deleted file mode 100644
index fa3a627cc9..0000000000
--- a/services/web/frontend/stylesheets/vendor/pdfListView/TextLayer.css
+++ /dev/null
@@ -1,33 +0,0 @@
-.plv-page-view {
-  position: relative;
-}
-.plv-text-layer {
-  position: absolute;
-  left: 0;
-  top: 0;
-  right: 0;
-  bottom: 0;
-  color: #000;
-  font-family: sans-serif;
-  overflow: hidden;
-  pointer-events: none;
-}
-.plv-text-layer > span {
-  color: transparent;
-  position: absolute;
-  line-height: 1;
-  white-space: pre;
-  cursor: text;
-  pointer-events: auto;
-  -webkit-transform-origin: 0% 0%;
-  -moz-transform-origin: 0% 0%;
-  -o-transform-origin: 0% 0%;
-  -ms-transform-origin: 0% 0%;
-  transform-origin: 0% 0%;
-}
-.plv-text-layer > span::selection {
-  background: rgba(0, 0, 255, 0.3);
-}
-.plv-text-layer > span::-moz-selection {
-  background: rgba(0, 0, 255, 0.3);
-}