diff --git a/app/components/Switch.js b/app/components/Switch.js
index aaa08f18..172c54e9 100644
--- a/app/components/Switch.js
+++ b/app/components/Switch.js
@@ -13,17 +13,23 @@ type Props = {|
   id?: string,
 |};
 
-function Switch({ width = 38, height = 20, label, ...props }: Props) {
+function Switch({ width = 38, height = 20, label, disabled, ...props }: Props) {
   const component = (
     <Wrapper width={width} height={height}>
-      <HiddenInput type="checkbox" width={width} height={height} {...props} />
+      <HiddenInput
+        type="checkbox"
+        width={width}
+        height={height}
+        disabled={disabled}
+        {...props}
+      />
       <Slider width={width} height={height} />
     </Wrapper>
   );
 
   if (label) {
     return (
-      <Label htmlFor={props.id}>
+      <Label disabled={disabled} htmlFor={props.id}>
         {component}
         <LabelText>{label}</LabelText>
       </Label>
@@ -36,6 +42,8 @@ function Switch({ width = 38, height = 20, label, ...props }: Props) {
 const Label = styled.label`
   display: flex;
   align-items: center;
+
+  ${(props) => (props.disabled ? `opacity: 0.75;` : "")}
 `;
 
 const Wrapper = styled.label`
@@ -79,6 +87,11 @@ const HiddenInput = styled.input`
   height: 0;
   visibility: hidden;
 
+  &:disabled + ${Slider} {
+    opacity: 0.75;
+    cursor: default;
+  }
+
   &:checked + ${Slider} {
     background-color: ${(props) => props.theme.primary};
   }
diff --git a/app/menus/CollectionMenu.js b/app/menus/CollectionMenu.js
index 581afe18..76d325b7 100644
--- a/app/menus/CollectionMenu.js
+++ b/app/menus/CollectionMenu.js
@@ -145,7 +145,7 @@ function CollectionMenu({
               onClick: () => setShowCollectionEdit(true),
             },
             {
-              title: `${t("Permissions")}…`,
+              title: `${t("Members")}…`,
               visible: can.update,
               onClick: () => setShowCollectionMembers(true),
             },
@@ -171,7 +171,7 @@ function CollectionMenu({
       {renderModals && (
         <>
           <Modal
-            title={t("Collection permissions")}
+            title={t("Collection members")}
             onRequestClose={() => setShowCollectionMembers(false)}
             isOpen={showCollectionMembers}
           >
diff --git a/app/menus/DocumentMenu.js b/app/menus/DocumentMenu.js
index a013bfc3..73b60a43 100644
--- a/app/menus/DocumentMenu.js
+++ b/app/menus/DocumentMenu.js
@@ -15,6 +15,7 @@ import OverflowMenuButton from "components/ContextMenu/OverflowMenuButton";
 import Template from "components/ContextMenu/Template";
 import Flex from "components/Flex";
 import Modal from "components/Modal";
+import useCurrentTeam from "hooks/useCurrentTeam";
 import useStores from "hooks/useStores";
 import {
   documentHistoryUrl,
@@ -49,7 +50,8 @@ function DocumentMenu({
   onOpen,
   onClose,
 }: Props) {
-  const { policies, collections, auth, ui } = useStores();
+  const team = useCurrentTeam();
+  const { policies, collections, ui } = useStores();
   const menu = useMenuState({ modal });
   const history = useHistory();
   const { t } = useTranslation();
@@ -130,10 +132,10 @@ function DocumentMenu({
     [document]
   );
 
-  const can = policies.abilities(document.id);
-  const canShareDocuments = !!(can.share && auth.team && auth.team.sharing);
-  const canViewHistory = can.read && !can.restore;
   const collection = collections.get(document.collectionId);
+  const can = policies.abilities(document.id);
+  const canShareDocuments = !!(can.share && team.sharing);
+  const canViewHistory = can.read && !can.restore;
 
   return (
     <>
diff --git a/app/models/Collection.js b/app/models/Collection.js
index 388a0668..a8fc4666 100644
--- a/app/models/Collection.js
+++ b/app/models/Collection.js
@@ -16,6 +16,7 @@ export default class Collection extends BaseModel {
   icon: string;
   color: string;
   private: boolean;
+  sharing: boolean;
   documents: NavigationNode[];
   createdAt: ?string;
   updatedAt: ?string;
@@ -112,6 +113,7 @@ export default class Collection extends BaseModel {
       "name",
       "color",
       "description",
+      "sharing",
       "icon",
       "private",
       "sort",
diff --git a/app/scenes/Collection.js b/app/scenes/Collection.js
index f1bacb8b..c638db1f 100644
--- a/app/scenes/Collection.js
+++ b/app/scenes/Collection.js
@@ -230,7 +230,7 @@ class CollectionScene extends React.Component<Props> {
                   )}
                 </Wrapper>
                 <Modal
-                  title={t("Collection permissions")}
+                  title={t("Collection members")}
                   onRequestClose={this.handlePermissionsModalClose}
                   isOpen={this.permissionsModalOpen}
                 >
diff --git a/app/scenes/CollectionEdit.js b/app/scenes/CollectionEdit.js
index 5efa21f6..84ede833 100644
--- a/app/scenes/CollectionEdit.js
+++ b/app/scenes/CollectionEdit.js
@@ -3,6 +3,7 @@ import { observable } from "mobx";
 import { inject, observer } from "mobx-react";
 import * as React from "react";
 import { withTranslation, Trans, type TFunction } from "react-i18next";
+import AuthStore from "stores/AuthStore";
 import UiStore from "stores/UiStore";
 import Collection from "models/Collection";
 import Button from "components/Button";
@@ -17,6 +18,7 @@ import Switch from "components/Switch";
 type Props = {
   collection: Collection,
   ui: UiStore,
+  auth: AuthStore,
   onSubmit: () => void,
   t: TFunction,
 };
@@ -24,6 +26,7 @@ type Props = {
 @observer
 class CollectionEdit extends React.Component<Props> {
   @observable name: string = this.props.collection.name;
+  @observable sharing: boolean = this.props.collection.sharing;
   @observable description: string = this.props.collection.description;
   @observable icon: string = this.props.collection.icon;
   @observable color: string = this.props.collection.color || "#4E5C6E";
@@ -44,6 +47,7 @@ class CollectionEdit extends React.Component<Props> {
         icon: this.icon,
         color: this.color,
         private: this.private,
+        sharing: this.sharing,
         sort: this.sort,
       });
       this.props.onSubmit();
@@ -82,8 +86,13 @@ class CollectionEdit extends React.Component<Props> {
     this.private = ev.target.checked;
   };
 
+  handleSharingChange = (ev: SyntheticInputEvent<*>) => {
+    this.sharing = ev.target.checked;
+  };
+
   render() {
-    const { t } = this.props;
+    const { auth, t } = this.props;
+    const teamSharingEnabled = !!auth.team && auth.team.sharing;
 
     return (
       <Flex column>
@@ -140,6 +149,25 @@ class CollectionEdit extends React.Component<Props> {
               A private collection will only be visible to invited team members.
             </Trans>
           </HelpText>
+          <Switch
+            id="sharing"
+            label={t("Public document sharing")}
+            onChange={this.handleSharingChange}
+            checked={this.sharing && teamSharingEnabled}
+            disabled={!teamSharingEnabled}
+          />
+          <HelpText>
+            {teamSharingEnabled ? (
+              <Trans>
+                When enabled, documents can be shared publicly on the internet.
+              </Trans>
+            ) : (
+              <Trans>
+                Public sharing is currently disabled in the team security
+                settings.
+              </Trans>
+            )}
+          </HelpText>
           <Button
             type="submit"
             disabled={this.isSaving || !this.props.collection.name}
@@ -152,4 +180,6 @@ class CollectionEdit extends React.Component<Props> {
   }
 }
 
-export default withTranslation()<CollectionEdit>(inject("ui")(CollectionEdit));
+export default withTranslation()<CollectionEdit>(
+  inject("ui", "auth")(CollectionEdit)
+);
diff --git a/app/scenes/CollectionNew.js b/app/scenes/CollectionNew.js
index acb2bc21..522229e4 100644
--- a/app/scenes/CollectionNew.js
+++ b/app/scenes/CollectionNew.js
@@ -3,8 +3,9 @@ import { intersection } from "lodash";
 import { observable } from "mobx";
 import { inject, observer } from "mobx-react";
 import * as React from "react";
-import { withTranslation, type TFunction } from "react-i18next";
+import { withTranslation, type TFunction, Trans } from "react-i18next";
 import { withRouter, type RouterHistory } from "react-router-dom";
+import AuthStore from "stores/AuthStore";
 import CollectionsStore from "stores/CollectionsStore";
 import UiStore from "stores/UiStore";
 import Collection from "models/Collection";
@@ -18,6 +19,7 @@ import Switch from "components/Switch";
 
 type Props = {
   history: RouterHistory,
+  auth: AuthStore,
   ui: UiStore,
   collections: CollectionsStore,
   onSubmit: () => void,
@@ -30,6 +32,7 @@ class CollectionNew extends React.Component<Props> {
   @observable description: string = "";
   @observable icon: string = "";
   @observable color: string = "#4E5C6E";
+  @observable sharing: boolean = true;
   @observable private: boolean = false;
   @observable isSaving: boolean;
   hasOpenedIconPicker: boolean = false;
@@ -41,6 +44,7 @@ class CollectionNew extends React.Component<Props> {
       {
         name: this.name,
         description: this.description,
+        sharing: this.sharing,
         icon: this.icon,
         color: this.color,
         private: this.private,
@@ -59,7 +63,7 @@ class CollectionNew extends React.Component<Props> {
     }
   };
 
-  handleNameChange = (ev: SyntheticInputEvent<*>) => {
+  handleNameChange = (ev: SyntheticInputEvent<HTMLInputElement>) => {
     this.name = ev.target.value;
 
     // If the user hasn't picked an icon yet, go ahead and suggest one based on
@@ -90,24 +94,31 @@ class CollectionNew extends React.Component<Props> {
     this.description = getValue();
   };
 
-  handlePrivateChange = (ev: SyntheticInputEvent<*>) => {
+  handlePrivateChange = (ev: SyntheticInputEvent<HTMLInputElement>) => {
     this.private = ev.target.checked;
   };
 
+  handleSharingChange = (ev: SyntheticInputEvent<HTMLInputElement>) => {
+    this.sharing = ev.target.checked;
+  };
+
   handleChange = (color: string, icon: string) => {
     this.color = color;
     this.icon = icon;
   };
 
   render() {
-    const { t } = this.props;
+    const { t, auth } = this.props;
+    const teamSharingEnabled = !!auth.team && auth.team.sharing;
 
     return (
       <form onSubmit={this.handleSubmit}>
         <HelpText>
-          {t(
-            "Collections are for grouping your knowledge base. They work best when organized around a topic or internal team — Product or Engineering for example."
-          )}
+          <Trans>
+            Collections are for grouping your knowledge base. They work best
+            when organized around a topic or internal team — Product or
+            Engineering for example.
+          </Trans>
         </HelpText>
         <Flex>
           <Input
@@ -142,10 +153,25 @@ class CollectionNew extends React.Component<Props> {
           checked={this.private}
         />
         <HelpText>
-          {t(
-            "A private collection will only be visible to invited team members."
-          )}
+          <Trans>
+            A private collection will only be visible to invited team members.
+          </Trans>
         </HelpText>
+        {teamSharingEnabled && (
+          <>
+            <Switch
+              id="sharing"
+              label={t("Public document sharing")}
+              onChange={this.handleSharingChange}
+              checked={this.sharing}
+            />
+            <HelpText>
+              <Trans>
+                When enabled, documents can be shared publicly on the internet.
+              </Trans>
+            </HelpText>
+          </>
+        )}
 
         <Button type="submit" disabled={this.isSaving || !this.name}>
           {this.isSaving ? `${t("Creating")}…` : t("Create")}
@@ -156,5 +182,5 @@ class CollectionNew extends React.Component<Props> {
 }
 
 export default withTranslation()<CollectionNew>(
-  inject("collections", "ui")(withRouter(CollectionNew))
+  inject("collections", "ui", "auth")(withRouter(CollectionNew))
 );
diff --git a/app/scenes/Document/components/Header.js b/app/scenes/Document/components/Header.js
index c51984c3..7f840a91 100644
--- a/app/scenes/Document/components/Header.js
+++ b/app/scenes/Document/components/Header.js
@@ -126,7 +126,7 @@ class Header extends React.Component<Props> {
     const isNew = document.isNew;
     const isTemplate = document.isTemplate;
     const can = policies.abilities(document.id);
-    const canShareDocuments = auth.team && auth.team.sharing && can.share;
+    const canShareDocument = auth.team && auth.team.sharing && can.share;
     const canToggleEmbeds = auth.team && auth.team.documentEmbeds;
     const canEdit = can.update && !isEditing;
 
@@ -200,7 +200,7 @@ class Header extends React.Component<Props> {
               <TemplatesMenu document={document} />
             </Action>
           )}
-          {!isEditing && canShareDocuments && (
+          {!isEditing && canShareDocument && (
             <Action>
               <Tooltip
                 tooltip={
diff --git a/app/stores/CollectionsStore.js b/app/stores/CollectionsStore.js
index 015fc67c..df29d61e 100644
--- a/app/stores/CollectionsStore.js
+++ b/app/stores/CollectionsStore.js
@@ -1,6 +1,6 @@
 // @flow
 import { concat, filter, last } from "lodash";
-import { computed } from "mobx";
+import { computed, action } from "mobx";
 
 import naturalSort from "shared/utils/naturalSort";
 import Collection from "models/Collection";
@@ -88,6 +88,25 @@ export default class CollectionsStore extends BaseStore<Collection> {
     });
   }
 
+  @action
+  async update(params: Object): Promise<Collection> {
+    const result = await super.update(params);
+
+    // If we're changing sharing permissions on the collection then we need to
+    // remove all locally cached policies for documents in the collection as they
+    // are now invalid
+    if (params.sharing !== undefined) {
+      const collection = this.get(params.id);
+      if (collection) {
+        collection.documentIds.forEach((id) => {
+          this.rootStore.policies.remove(id);
+        });
+      }
+    }
+
+    return result;
+  }
+
   getPathForDocument(documentId: string): ?DocumentPath {
     return this.pathsToDocuments.find((path) => path.id === documentId);
   }
diff --git a/server/api/collections.js b/server/api/collections.js
index 99f2394f..900a83c0 100644
--- a/server/api/collections.js
+++ b/server/api/collections.js
@@ -34,6 +34,7 @@ router.post("collections.create", auth(), async (ctx) => {
     name,
     color,
     description,
+    sharing,
     icon,
     sort = Collection.DEFAULT_SORT,
   } = ctx.body;
@@ -55,6 +56,7 @@ router.post("collections.create", auth(), async (ctx) => {
     teamId: user.teamId,
     createdById: user.id,
     private: isPrivate,
+    sharing,
     sort,
   });
 
@@ -452,7 +454,7 @@ router.post("collections.export_all", auth(), async (ctx) => {
 });
 
 router.post("collections.update", auth(), async (ctx) => {
-  let { id, name, description, icon, color, sort } = ctx.body;
+  let { id, name, description, icon, color, sort, sharing } = ctx.body;
   const isPrivate = ctx.body.private;
 
   if (color) {
@@ -498,6 +500,9 @@ router.post("collections.update", auth(), async (ctx) => {
   if (isPrivate !== undefined) {
     collection.private = isPrivate;
   }
+  if (sharing !== undefined) {
+    collection.sharing = sharing;
+  }
   if (sort !== undefined) {
     collection.sort = sort;
   }
diff --git a/server/api/collections.test.js b/server/api/collections.test.js
index d713fa68..5feef64c 100644
--- a/server/api/collections.test.js
+++ b/server/api/collections.test.js
@@ -876,6 +876,18 @@ describe("#collections.create", () => {
     expect(body.policies[0].abilities.export).toBeTruthy();
   });
 
+  it("should allow setting sharing to false", async () => {
+    const { user } = await seed();
+    const res = await server.post("/api/collections.create", {
+      body: { token: user.getJwtToken(), name: "Test", sharing: false },
+    });
+    const body = await res.json();
+
+    expect(res.status).toEqual(200);
+    expect(body.data.id).toBeTruthy();
+    expect(body.data.sharing).toBe(false);
+  });
+
   it("should return correct policies with private collection", async () => {
     const { user } = await seed();
     const res = await server.post("/api/collections.create", {
diff --git a/server/api/documents.js b/server/api/documents.js
index de7e1966..50084889 100644
--- a/server/api/documents.js
+++ b/server/api/documents.js
@@ -488,6 +488,11 @@ async function loadDocument({ id, shareId, user }) {
       authorize(user, "read", document);
     }
 
+    const collection = await Collection.findByPk(document.collectionId);
+    if (!collection.sharing) {
+      throw new AuthorizationError();
+    }
+
     const team = await Team.findByPk(document.teamId);
     if (!team.sharing) {
       throw new AuthorizationError();
diff --git a/server/api/documents.test.js b/server/api/documents.test.js
index bde70bbd..a8ac18f1 100644
--- a/server/api/documents.test.js
+++ b/server/api/documents.test.js
@@ -112,6 +112,23 @@ describe("#documents.info", () => {
     expect(res.status).toEqual(403);
   });
 
+  it("should not return document from shareId if sharing is disabled for collection", async () => {
+    const { document, collection, user } = await seed();
+    const share = await buildShare({
+      documentId: document.id,
+      teamId: document.teamId,
+      userId: user.id,
+    });
+
+    collection.sharing = false;
+    await collection.save();
+
+    const res = await server.post("/api/documents.info", {
+      body: { shareId: share.id },
+    });
+    expect(res.status).toEqual(403);
+  });
+
   it("should not return document from revoked shareId", async () => {
     const { document, user } = await seed();
     const share = await buildShare({
diff --git a/server/api/shares.test.js b/server/api/shares.test.js
index 8786f26e..854b2647 100644
--- a/server/api/shares.test.js
+++ b/server/api/shares.test.js
@@ -202,7 +202,7 @@ describe("#shares.create", () => {
     expect(body.data.id).toBe(share.id);
   });
 
-  it("should not allow creating a share record if disabled", async () => {
+  it("should not allow creating a share record if team sharing disabled", async () => {
     const { user, document, team } = await seed();
     await team.update({ sharing: false });
     const res = await server.post("/api/shares.create", {
@@ -211,6 +211,15 @@ describe("#shares.create", () => {
     expect(res.status).toEqual(403);
   });
 
+  it("should not allow creating a share record if collection sharing disabled", async () => {
+    const { user, collection, document } = await seed();
+    await collection.update({ sharing: false });
+    const res = await server.post("/api/shares.create", {
+      body: { token: user.getJwtToken(), documentId: document.id },
+    });
+    expect(res.status).toEqual(403);
+  });
+
   it("should require authentication", async () => {
     const { document } = await seed();
     const res = await server.post("/api/shares.create", {
diff --git a/server/migrations/20210208062816-disable-collection-sharing.js b/server/migrations/20210208062816-disable-collection-sharing.js
new file mode 100644
index 00000000..a2c7a527
--- /dev/null
+++ b/server/migrations/20210208062816-disable-collection-sharing.js
@@ -0,0 +1,12 @@
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    await queryInterface.addColumn('collections', 'sharing', {
+      type: Sequelize.BOOLEAN,
+      allowNull: false,
+      defaultValue: true
+    });
+  },
+  down: async (queryInterface, Sequelize) => {
+    await queryInterface.removeColumn('collections', 'sharing');
+  }
+}
\ No newline at end of file
diff --git a/server/models/Collection.js b/server/models/Collection.js
index f72a67fc..e2e41f8c 100644
--- a/server/models/Collection.js
+++ b/server/models/Collection.js
@@ -24,6 +24,11 @@ const Collection = sequelize.define(
     private: DataTypes.BOOLEAN,
     maintainerApprovalRequired: DataTypes.BOOLEAN,
     documentStructure: DataTypes.JSONB,
+    sharing: {
+      type: DataTypes.BOOLEAN,
+      allowNull: false,
+      defaultValue: true,
+    },
     sort: {
       type: DataTypes.JSONB,
       validate: {
diff --git a/server/policies/collection.js b/server/policies/collection.js
index 37abacac..e72a94f9 100644
--- a/server/policies/collection.js
+++ b/server/policies/collection.js
@@ -31,6 +31,29 @@ allow(User, ["read", "export"], Collection, (user, collection) => {
   return true;
 });
 
+allow(User, "share", Collection, (user, collection) => {
+  if (!collection || user.teamId !== collection.teamId) return false;
+  if (!collection.sharing) return false;
+
+  if (collection.private) {
+    invariant(
+      collection.memberships,
+      "membership should be preloaded, did you forget withMembership scope?"
+    );
+
+    const allMemberships = concat(
+      collection.memberships,
+      collection.collectionGroupMemberships
+    );
+
+    return some(allMemberships, (m) =>
+      ["read_write", "maintainer"].includes(m.permission)
+    );
+  }
+
+  return true;
+});
+
 allow(User, ["publish", "update"], Collection, (user, collection) => {
   if (!collection || user.teamId !== collection.teamId) return false;
 
diff --git a/server/policies/document.js b/server/policies/document.js
index 310734a8..69c5a748 100644
--- a/server/policies/document.js
+++ b/server/policies/document.js
@@ -31,12 +31,22 @@ allow(User, ["star", "unstar"], Document, (user, document) => {
   return user.teamId === document.teamId;
 });
 
-allow(User, ["update", "share"], Document, (user, document) => {
+allow(User, "share", Document, (user, document) => {
   if (document.archivedAt) return false;
   if (document.deletedAt) return false;
 
-  // existence of collection option is not required here to account for share tokens
-  if (document.collection && cannot(user, "update", document.collection)) {
+  if (cannot(user, "share", document.collection)) {
+    return false;
+  }
+
+  return user.teamId === document.teamId;
+});
+
+allow(User, "update", Document, (user, document) => {
+  if (document.archivedAt) return false;
+  if (document.deletedAt) return false;
+
+  if (cannot(user, "update", document.collection)) {
     return false;
   }
 
diff --git a/server/presenters/collection.js b/server/presenters/collection.js
index f8c851cf..b877e9c5 100644
--- a/server/presenters/collection.js
+++ b/server/presenters/collection.js
@@ -30,6 +30,7 @@ export default function present(collection: Collection) {
     icon: collection.icon,
     color: collection.color || "#4E5C6E",
     private: collection.private,
+    sharing: collection.sharing,
     createdAt: collection.createdAt,
     updatedAt: collection.updatedAt,
     deletedAt: collection.deletedAt,
diff --git a/shared/i18n/locales/en_US/translation.json b/shared/i18n/locales/en_US/translation.json
index 3d538638..d242db6d 100644
--- a/shared/i18n/locales/en_US/translation.json
+++ b/shared/i18n/locales/en_US/translation.json
@@ -130,10 +130,9 @@
   "New document": "New document",
   "Import document": "Import document",
   "Edit": "Edit",
-  "Permissions": "Permissions",
   "Export": "Export",
   "Delete": "Delete",
-  "Collection permissions": "Collection permissions",
+  "Collection members": "Collection members",
   "Edit collection": "Edit collection",
   "Delete collection": "Delete collection",
   "Export collection": "Export collection",
@@ -210,6 +209,9 @@
   "Alphabetical": "Alphabetical",
   "Private collection": "Private collection",
   "A private collection will only be visible to invited team members.": "A private collection will only be visible to invited team members.",
+  "Public document sharing": "Public document sharing",
+  "When enabled, documents can be shared publicly on the internet.": "When enabled, documents can be shared publicly on the internet.",
+  "Public sharing is currently disabled in the team security settings.": "Public sharing is currently disabled in the team security settings.",
   "Saving": "Saving",
   "Save": "Save",
   "{{ groupName }} was added to the collection": "{{ groupName }} was added to the collection",
@@ -230,6 +232,7 @@
   "No people left to add": "No people left to add",
   "Read only": "Read only",
   "Read & Edit": "Read & Edit",
+  "Permissions": "Permissions",
   "Active <1></1> ago": "Active <1></1> ago",
   "Never signed in": "Never signed in",
   "Invited": "Invited",