diff --git a/web/annotation_layer_builder.js b/web/annotation_layer_builder.js
index c68051d36..8c5b66ef3 100644
--- a/web/annotation_layer_builder.js
+++ b/web/annotation_layer_builder.js
@@ -13,9 +13,9 @@
  * limitations under the License.
  */
 
-import { AnnotationLayer } from 'pdfjs-web/pdfjs';
-import { mozL10n } from 'pdfjs-web/ui_utils';
-import { SimpleLinkService } from 'pdfjs-web/pdf_link_service';
+import { AnnotationLayer } from './pdfjs';
+import { mozL10n } from './ui_utils';
+import { SimpleLinkService } from './pdf_link_service';
 
 /**
  * @typedef {Object} AnnotationLayerBuilderOptions
diff --git a/web/app.js b/web/app.js
index 237f9e8fe..6d4cf32af 100644
--- a/web/app.js
+++ b/web/app.js
@@ -18,34 +18,34 @@ import {
   animationStarted, DEFAULT_SCALE_VALUE, getPDFFileNameFromURL, localized,
   MAX_SCALE, MIN_SCALE, mozL10n, noContextMenuHandler, normalizeWheelEventDelta,
   parseQueryString, ProgressBar, RendererType, UNKNOWN_SCALE
-} from 'pdfjs-web/ui_utils';
+} from './ui_utils';
 import {
   build, createBlob, getDocument, getFilenameFromUrl, InvalidPDFException,
   MissingPDFException, OPS, PDFJS, shadow, UnexpectedResponseException,
   UNSUPPORTED_FEATURES, version,
-} from 'pdfjs-web/pdfjs';
+} from './pdfjs';
 import {
   PDFRenderingQueue, RenderingStates
-} from 'pdfjs-web/pdf_rendering_queue';
-import { PDFSidebar, SidebarView } from 'pdfjs-web/pdf_sidebar';
-import { PDFViewer, PresentationModeState } from 'pdfjs-web/pdf_viewer';
-import { getGlobalEventBus } from 'pdfjs-web/dom_events';
-import { HandTool } from 'pdfjs-web/hand_tool';
-import { OverlayManager } from 'pdfjs-web/overlay_manager';
-import { PasswordPrompt } from 'pdfjs-web/password_prompt';
-import { PDFAttachmentViewer } from 'pdfjs-web/pdf_attachment_viewer';
-import { PDFDocumentProperties } from 'pdfjs-web/pdf_document_properties';
-import { PDFFindBar } from 'pdfjs-web/pdf_find_bar';
-import { PDFFindController } from 'pdfjs-web/pdf_find_controller';
-import { PDFHistory } from 'pdfjs-web/pdf_history';
-import { PDFLinkService } from 'pdfjs-web/pdf_link_service';
-import { PDFOutlineViewer } from 'pdfjs-web/pdf_outline_viewer';
-import { PDFPresentationMode } from 'pdfjs-web/pdf_presentation_mode';
-import { PDFThumbnailViewer } from 'pdfjs-web/pdf_thumbnail_viewer';
-import { Preferences } from 'pdfjs-web/preferences';
-import { SecondaryToolbar } from 'pdfjs-web/secondary_toolbar';
-import { Toolbar } from 'pdfjs-web/toolbar';
-import { ViewHistory } from 'pdfjs-web/view_history';
+} from './pdf_rendering_queue';
+import { PDFSidebar, SidebarView } from './pdf_sidebar';
+import { PDFViewer, PresentationModeState } from './pdf_viewer';
+import { getGlobalEventBus } from './dom_events';
+import { HandTool } from './hand_tool';
+import { OverlayManager } from './overlay_manager';
+import { PasswordPrompt } from './password_prompt';
+import { PDFAttachmentViewer } from './pdf_attachment_viewer';
+import { PDFDocumentProperties } from './pdf_document_properties';
+import { PDFFindBar } from './pdf_find_bar';
+import { PDFFindController } from './pdf_find_controller';
+import { PDFHistory } from './pdf_history';
+import { PDFLinkService } from './pdf_link_service';
+import { PDFOutlineViewer } from './pdf_outline_viewer';
+import { PDFPresentationMode } from './pdf_presentation_mode';
+import { PDFThumbnailViewer } from './pdf_thumbnail_viewer';
+import { Preferences } from './preferences';
+import { SecondaryToolbar } from './secondary_toolbar';
+import { Toolbar } from './toolbar';
+import { ViewHistory } from './view_history';
 
 var DEFAULT_SCALE_DELTA = 1.1;
 var DISABLE_AUTO_FETCH_LOADING_BAR_TIMEOUT = 5000;
diff --git a/web/chromecom.js b/web/chromecom.js
index d0e1a93d1..47d867c66 100644
--- a/web/chromecom.js
+++ b/web/chromecom.js
@@ -14,10 +14,10 @@
  */
 /* globals chrome */
 
-import { DefaultExternalServices, PDFViewerApplication } from 'pdfjs-web/app';
-import { OverlayManager } from 'pdfjs-web/overlay_manager';
-import { PDFJS } from 'pdfjs-web/pdfjs';
-import { Preferences } from 'pdfjs-web/preferences';
+import { DefaultExternalServices, PDFViewerApplication } from './app';
+import { OverlayManager } from './overlay_manager';
+import { PDFJS } from './pdfjs';
+import { Preferences } from './preferences';
 
 if (typeof PDFJSDev === 'undefined' || !PDFJSDev.test('CHROME')) {
   throw new Error('Module "pdfjs-web/chromecom" shall not be used outside ' +
diff --git a/web/dom_events.js b/web/dom_events.js
index cf9be2732..373c08553 100644
--- a/web/dom_events.js
+++ b/web/dom_events.js
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-import { EventBus } from 'pdfjs-web/ui_utils';
+import { EventBus } from './ui_utils';
 
 // Attaching to the application event bus to dispatch events to the DOM for
 // backwards viewer API compatibility.
diff --git a/web/download_manager.js b/web/download_manager.js
index dfcc95ad3..43831ea8f 100644
--- a/web/download_manager.js
+++ b/web/download_manager.js
@@ -15,8 +15,8 @@
 
 import {
   createObjectURL, createValidAbsoluteUrl, PDFJS
-} from 'pdfjs-web/pdfjs';
-import { DefaultExternalServices, PDFViewerApplication } from 'pdfjs-web/app';
+} from './pdfjs';
+import { DefaultExternalServices, PDFViewerApplication } from './app';
 
 if (typeof PDFJSDev !== 'undefined' && !PDFJSDev.test('CHROME || GENERIC')) {
   throw new Error('Module "pdfjs-web/download_manager" shall not be used ' +
diff --git a/web/firefox_print_service.js b/web/firefox_print_service.js
index a8dd45b9e..1556c4ff8 100644
--- a/web/firefox_print_service.js
+++ b/web/firefox_print_service.js
@@ -13,9 +13,9 @@
  * limitations under the License.
  */
 
-import { CSS_UNITS } from 'pdfjs-web/ui_utils';
-import { PDFPrintServiceFactory } from 'pdfjs-web/app';
-import { shadow } from 'pdfjs-web/pdfjs';
+import { CSS_UNITS } from './ui_utils';
+import { PDFPrintServiceFactory } from './app';
+import { shadow } from './pdfjs';
 
 // Creates a placeholder with div and canvas with right size for the page.
 function composePage(pdfDocument, pageNumber, size, printContainer) {
diff --git a/web/firefoxcom.js b/web/firefoxcom.js
index 64e2085e5..015b946aa 100644
--- a/web/firefoxcom.js
+++ b/web/firefoxcom.js
@@ -15,9 +15,9 @@
 
 import {
   createObjectURL, PDFDataRangeTransport, shadow
-} from 'pdfjs-web/pdfjs';
-import { PDFViewerApplication } from 'pdfjs-web/app';
-import { Preferences } from 'pdfjs-web/preferences';
+} from './pdfjs';
+import { PDFViewerApplication } from './app';
+import { Preferences } from './preferences';
 
 if (typeof PDFJSDev === 'undefined' ||
     !PDFJSDev.test('FIREFOX || MOZCENTRAL')) {
diff --git a/web/hand_tool.js b/web/hand_tool.js
index eff267db9..eab54d7af 100644
--- a/web/hand_tool.js
+++ b/web/hand_tool.js
@@ -13,9 +13,9 @@
  * limitations under the License.
  */
 
-import { GrabToPan } from 'pdfjs-web/grab_to_pan';
-import { localized } from 'pdfjs-web/ui_utils';
-import { Preferences } from 'pdfjs-web/preferences';
+import { GrabToPan } from './grab_to_pan';
+import { localized } from './ui_utils';
+import { Preferences } from './preferences';
 
 /**
  * @typedef {Object} HandToolOptions
diff --git a/web/password_prompt.js b/web/password_prompt.js
index 710ddd370..af8cb6fbc 100644
--- a/web/password_prompt.js
+++ b/web/password_prompt.js
@@ -13,9 +13,9 @@
  * limitations under the License.
  */
 
-import { mozL10n } from 'pdfjs-web/ui_utils';
-import { OverlayManager } from 'pdfjs-web/overlay_manager';
-import { PasswordResponses } from 'pdfjs-web/pdfjs';
+import { mozL10n } from './ui_utils';
+import { OverlayManager } from './overlay_manager';
+import { PasswordResponses } from './pdfjs';
 
 /**
  * @typedef {Object} PasswordPromptOptions
diff --git a/web/pdf_attachment_viewer.js b/web/pdf_attachment_viewer.js
index 141c480bd..c8a3b034b 100644
--- a/web/pdf_attachment_viewer.js
+++ b/web/pdf_attachment_viewer.js
@@ -16,7 +16,7 @@
 import {
   createObjectURL, createPromiseCapability, getFilenameFromUrl, PDFJS,
   removeNullCharacters
-} from 'pdfjs-web/pdfjs';
+} from './pdfjs';
 
 /**
  * @typedef {Object} PDFAttachmentViewerOptions
diff --git a/web/pdf_document_properties.js b/web/pdf_document_properties.js
index 1f9acdf2c..bc2da5d44 100644
--- a/web/pdf_document_properties.js
+++ b/web/pdf_document_properties.js
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-import { getPDFFileNameFromURL, mozL10n } from 'pdfjs-web/ui_utils';
-import { OverlayManager } from 'pdfjs-web/overlay_manager';
+import { getPDFFileNameFromURL, mozL10n } from './ui_utils';
+import { OverlayManager } from './overlay_manager';
 
 /**
  * @typedef {Object} PDFDocumentPropertiesOptions
diff --git a/web/pdf_find_bar.js b/web/pdf_find_bar.js
index 818714a24..35962b25c 100644
--- a/web/pdf_find_bar.js
+++ b/web/pdf_find_bar.js
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-import { FindStates } from 'pdfjs-web/pdf_find_controller';
-import { mozL10n } from 'pdfjs-web/ui_utils';
+import { FindStates } from './pdf_find_controller';
+import { mozL10n } from './ui_utils';
 
 /**
  * Creates a "search bar" given a set of DOM elements that act as controls
diff --git a/web/pdf_find_controller.js b/web/pdf_find_controller.js
index d5d49fcba..305f5229e 100644
--- a/web/pdf_find_controller.js
+++ b/web/pdf_find_controller.js
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-import { scrollIntoView } from 'pdfjs-web/ui_utils';
+import { scrollIntoView } from './ui_utils';
 
 var FindStates = {
   FIND_FOUND: 0,
diff --git a/web/pdf_history.js b/web/pdf_history.js
index 5a4691cdb..f01288c2d 100644
--- a/web/pdf_history.js
+++ b/web/pdf_history.js
@@ -14,7 +14,7 @@
  */
 /* globals chrome */
 
-import { domEvents } from 'pdfjs-web/dom_events';
+import { domEvents } from './dom_events';
 
 function PDFHistory(options) {
   this.linkService = options.linkService;
diff --git a/web/pdf_link_service.js b/web/pdf_link_service.js
index 446ed98ba..9f584dbaf 100644
--- a/web/pdf_link_service.js
+++ b/web/pdf_link_service.js
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-import { domEvents } from 'pdfjs-web/dom_events';
-import { parseQueryString } from 'pdfjs-web/ui_utils';
+import { domEvents } from './dom_events';
+import { parseQueryString } from './ui_utils';
 
 var PageNumberRegExp = /^\d+$/;
 function isPageNumber(str) {
diff --git a/web/pdf_outline_viewer.js b/web/pdf_outline_viewer.js
index ce8d2e909..5a2052b6a 100644
--- a/web/pdf_outline_viewer.js
+++ b/web/pdf_outline_viewer.js
@@ -15,7 +15,7 @@
 
 import {
   addLinkAttributes, PDFJS, removeNullCharacters
-} from 'pdfjs-web/pdfjs';
+} from './pdfjs';
 
 var DEFAULT_TITLE = '\u2013';
 
diff --git a/web/pdf_page_view.js b/web/pdf_page_view.js
index 37c5c6f31..79429b22e 100644
--- a/web/pdf_page_view.js
+++ b/web/pdf_page_view.js
@@ -16,12 +16,12 @@
 import {
   approximateFraction, CSS_UNITS, DEFAULT_SCALE, getOutputScale, RendererType,
   roundToDivide
-} from 'pdfjs-web/ui_utils';
+} from './ui_utils';
 import {
   CustomStyle, PDFJS, RenderingCancelledException, SVGGraphics
-} from 'pdfjs-web/pdfjs';
-import { domEvents } from 'pdfjs-web/dom_events';
-import { RenderingStates } from 'pdfjs-web/pdf_rendering_queue';
+} from './pdfjs';
+import { domEvents } from './dom_events';
+import { RenderingStates } from './pdf_rendering_queue';
 
 var TEXT_LAYER_RENDER_DELAY = 200; // ms
 
diff --git a/web/pdf_presentation_mode.js b/web/pdf_presentation_mode.js
index c55162ce9..c9f3d8066 100644
--- a/web/pdf_presentation_mode.js
+++ b/web/pdf_presentation_mode.js
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-import { normalizeWheelEventDelta } from 'pdfjs-web/ui_utils';
+import { normalizeWheelEventDelta } from './ui_utils';
 
 var DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS = 1500; // in ms
 var DELAY_BEFORE_HIDING_CONTROLS = 3000; // in ms
diff --git a/web/pdf_print_service.js b/web/pdf_print_service.js
index e759d789b..dbe0b2ca2 100644
--- a/web/pdf_print_service.js
+++ b/web/pdf_print_service.js
@@ -13,10 +13,10 @@
  * limitations under the License.
  */
 
-import { CSS_UNITS, mozL10n } from 'pdfjs-web/ui_utils';
-import { OverlayManager } from 'pdfjs-web/overlay_manager';
-import { PDFJS } from 'pdfjs-web/pdfjs';
-import { PDFPrintServiceFactory } from 'pdfjs-web/app';
+import { CSS_UNITS, mozL10n } from './ui_utils';
+import { OverlayManager } from './overlay_manager';
+import { PDFJS } from './pdfjs';
+import { PDFPrintServiceFactory } from './app';
 
 var activeService = null;
 
diff --git a/web/pdf_sidebar.js b/web/pdf_sidebar.js
index ee7f632c6..8ab427760 100644
--- a/web/pdf_sidebar.js
+++ b/web/pdf_sidebar.js
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-import { mozL10n } from 'pdfjs-web/ui_utils';
-import { RenderingStates } from 'pdfjs-web/pdf_rendering_queue';
+import { mozL10n } from './ui_utils';
+import { RenderingStates } from './pdf_rendering_queue';
 
 var UI_NOTIFICATION_CLASS = 'pdfSidebarNotification';
 
diff --git a/web/pdf_thumbnail_view.js b/web/pdf_thumbnail_view.js
index cf814b989..a67e6abff 100644
--- a/web/pdf_thumbnail_view.js
+++ b/web/pdf_thumbnail_view.js
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-import { getOutputScale, mozL10n } from 'pdfjs-web/ui_utils';
-import { RenderingStates } from 'pdfjs-web/pdf_rendering_queue';
+import { getOutputScale, mozL10n } from './ui_utils';
+import { RenderingStates } from './pdf_rendering_queue';
 
 var THUMBNAIL_WIDTH = 98; // px
 var THUMBNAIL_CANVAS_BORDER_WIDTH = 1; // px
diff --git a/web/pdf_thumbnail_viewer.js b/web/pdf_thumbnail_viewer.js
index abd64a54a..67ac67006 100644
--- a/web/pdf_thumbnail_viewer.js
+++ b/web/pdf_thumbnail_viewer.js
@@ -15,8 +15,8 @@
 
 import {
   getVisibleElements, scrollIntoView, watchScroll
-} from 'pdfjs-web/ui_utils';
-import { PDFThumbnailView } from 'pdfjs-web/pdf_thumbnail_view';
+} from './ui_utils';
+import { PDFThumbnailView } from './pdf_thumbnail_view';
 
 var THUMBNAIL_SCROLL_MARGIN = -19;
 
diff --git a/web/pdf_viewer.js b/web/pdf_viewer.js
index 30925a9dc..d4f0d5753 100644
--- a/web/pdf_viewer.js
+++ b/web/pdf_viewer.js
@@ -17,16 +17,16 @@ import {
   CSS_UNITS, DEFAULT_SCALE, DEFAULT_SCALE_VALUE, getVisibleElements,
   MAX_AUTO_SCALE, RendererType, SCROLLBAR_PADDING, scrollIntoView,
   UNKNOWN_SCALE, VERTICAL_PADDING, watchScroll
-} from 'pdfjs-web/ui_utils';
+} from './ui_utils';
 import {
   PDFRenderingQueue, RenderingStates,
-} from 'pdfjs-web/pdf_rendering_queue';
-import { AnnotationLayerBuilder } from 'pdfjs-web/annotation_layer_builder';
-import { domEvents } from 'pdfjs-web/dom_events';
-import { PDFJS } from 'pdfjs-web/pdfjs';
-import { PDFPageView } from 'pdfjs-web/pdf_page_view';
-import { SimpleLinkService } from 'pdfjs-web/pdf_link_service';
-import { TextLayerBuilder } from 'pdfjs-web/text_layer_builder';
+} from './pdf_rendering_queue';
+import { AnnotationLayerBuilder } from './annotation_layer_builder';
+import { domEvents } from './dom_events';
+import { PDFJS } from './pdfjs';
+import { PDFPageView } from './pdf_page_view';
+import { SimpleLinkService } from './pdf_link_service';
+import { TextLayerBuilder } from './text_layer_builder';
 
 var PresentationModeState = {
   UNKNOWN: 0,
diff --git a/web/secondary_toolbar.js b/web/secondary_toolbar.js
index d9e2f1145..1ef7134a3 100644
--- a/web/secondary_toolbar.js
+++ b/web/secondary_toolbar.js
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-import { mozL10n, SCROLLBAR_PADDING } from 'pdfjs-web/ui_utils';
+import { mozL10n, SCROLLBAR_PADDING } from './ui_utils';
 
 /**
  * @typedef {Object} SecondaryToolbarOptions
diff --git a/web/text_layer_builder.js b/web/text_layer_builder.js
index 2552b68e7..d353f07b0 100644
--- a/web/text_layer_builder.js
+++ b/web/text_layer_builder.js
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-import { domEvents } from 'pdfjs-web/dom_events';
-import { renderTextLayer } from 'pdfjs-web/pdfjs';
+import { domEvents } from './dom_events';
+import { renderTextLayer } from './pdfjs';
 
 var EXPAND_DIVS_TIMEOUT = 300; // ms
 
diff --git a/web/toolbar.js b/web/toolbar.js
index 696dd5855..058996df1 100644
--- a/web/toolbar.js
+++ b/web/toolbar.js
@@ -16,7 +16,7 @@
 import {
   animationStarted, DEFAULT_SCALE, DEFAULT_SCALE_VALUE, localized, MAX_SCALE,
   MIN_SCALE, mozL10n, noContextMenuHandler
-} from 'pdfjs-web/ui_utils';
+} from './ui_utils';
 
 var PAGE_NUMBER_LOADING_INDICATOR = 'visiblePageIsLoading';
 var SCALE_SELECT_CONTAINER_PADDING = 8;
diff --git a/web/ui_utils.js b/web/ui_utils.js
index 8cd6960ff..46eb349d0 100644
--- a/web/ui_utils.js
+++ b/web/ui_utils.js
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-import { PDFJS } from 'pdfjs-web/pdfjs';
+import { PDFJS } from './pdfjs';
 
 var CSS_UNITS = 96.0 / 72.0;
 var DEFAULT_SCALE_VALUE = 'auto';