diff --git a/app/assets/javascripts/sitewide/file_preview.js b/app/assets/javascripts/sitewide/file_preview.js
index c0b4c1d17..48f2ee033 100644
--- a/app/assets/javascripts/sitewide/file_preview.js
+++ b/app/assets/javascripts/sitewide/file_preview.js
@@ -1,7 +1,8 @@
 /* eslint no-underscore-dangle: ["error", { "allowAfterThis": true }]*/
 /* eslint no-use-before-define: ["error", { "functions": false }]*/
 /* eslint-disable no-underscore-dangle */
-/* global Uint8Array fabric tui animateSpinner Assets I18n PerfectScrollbar*/
+/* global Uint8Array fabric tui animateSpinner */
+/* global Assets I18n PerfectScrollbar refreshProtocolStatusBar */
 //= require assets
 
 var FilePreviewModal = (function() {
@@ -448,6 +449,7 @@ var FilePreviewModal = (function() {
             if (!readOnly && data.editable) {
               modal.find('.file-edit-link').css('display', '');
               modal.find('.file-edit-link').off().click(function(ev) {
+                $.post('/files/' + data.id + '/start_edit_image');
                 ev.preventDefault();
                 ev.stopPropagation();
                 modal.modal('hide');
diff --git a/app/controllers/assets_controller.rb b/app/controllers/assets_controller.rb
index 007e4344e..9aecf53eb 100644
--- a/app/controllers/assets_controller.rb
+++ b/app/controllers/assets_controller.rb
@@ -1,5 +1,8 @@
+# frozen_string_literal: true
+
 class AssetsController < ApplicationController
   include WopiUtil
+  include AssetsActions
   # include ActionView::Helpers
   include ActionView::Helpers::AssetTagHelper
   include ActionView::Helpers::TextHelper
@@ -11,7 +14,7 @@ class AssetsController < ApplicationController
 
   before_action :load_vars, except: :create_wopi_file
   before_action :check_read_permission, except: :file_present
-  before_action :check_edit_permission, only: :edit
+  before_action :check_edit_permission, only: %i(edit create_start_edit_image_activity)
 
   def file_present
     return render_403 unless @asset.team == current_team
@@ -71,12 +74,10 @@ class AssetsController < ApplicationController
         'processing-img' => image_tag('medium/processing.gif')
       )
     else
-      response_json.merge!(
-        'processing'   => @asset.file.processing?,
-        'preview-icon' => render_to_string(
-          partial: 'shared/file_preview_icon.html.erb',
-          locals: { asset: @asset }
-        )
+      response_json['processing'] = @asset.file.processing?
+      response_json['preview-icon'] = render_to_string(
+        partial: 'shared/file_preview_icon.html.erb',
+        locals: { asset: @asset }
       )
     end
 
@@ -155,6 +156,10 @@ class AssetsController < ApplicationController
     render layout: false
   end
 
+  def create_start_edit_image_activity
+    create_edit_image_activity(@asset, current_user, :start_editing)
+  end
+
   def update_image
     @asset = Asset.find(params[:id])
     orig_file_size = @asset.file_file_size
@@ -164,6 +169,7 @@ class AssetsController < ApplicationController
     @asset.file = params[:image]
     @asset.file_file_name = orig_file_name
     @asset.save!
+    create_edit_image_activity(@asset, current_user, :finish_editing)
     # release previous image space
     @asset.team.release_space(orig_file_size)
     # Post process file here
diff --git a/app/controllers/concerns/assets_actions.rb b/app/controllers/concerns/assets_actions.rb
new file mode 100644
index 000000000..de32d2f6b
--- /dev/null
+++ b/app/controllers/concerns/assets_actions.rb
@@ -0,0 +1,53 @@
+# frozen_string_literal: true
+
+module AssetsActions
+  extend ActiveSupport::Concern
+
+  def create_edit_image_activity(asset, current_user, started_editing)
+    action = if started_editing == :start_editing
+               t('activities.file_editing.started')
+             elsif started_editing == :finish_editing
+               t('activities.file_editing.finished')
+             end
+    if asset.step.class == Step
+      protocol = asset.step.protocol
+      default_step_items =
+        { step: asset.step.id,
+          step_position: { id: asset.step.id, value_for: 'position_plus_one' },
+          asset_name: { id: asset.id, value_for: 'file_file_name' },
+          action: action }
+      if protocol.in_module?
+        project = protocol.my_module.experiment.project
+        team = project.team
+        type_of = :edit_image_on_step
+        message_items = { my_module: protocol.my_module.id }
+      else
+        type_of = :edit_image_on_step_in_repository
+        project = nil
+        team = protocol.team
+        message_items = { protocol: protocol.id }
+      end
+      message_items = default_step_items.merge(message_items)
+      Activities::CreateActivityService
+        .call(activity_type: type_of,
+              owner: current_user,
+              subject: protocol,
+              team: team,
+              project: project,
+              message_items: message_items)
+    elsif asset.result.class == Result
+      my_module = asset.result.my_module
+      Activities::CreateActivityService
+        .call(activity_type: :edit_image_on_result,
+              owner: current_user,
+              subject: asset.result,
+              team: my_module.experiment.project.team,
+              project: my_module.experiment.project,
+              message_items: {
+                result: asset.result.id,
+                asset_name: { id: asset.id, value_for: 'file_file_name' },
+                action: action
+              })
+    end
+  end
+end
diff --git a/config/initializers/extends.rb b/config/initializers/extends.rb
index 2e79014d1..3a85ede69 100644
--- a/config/initializers/extends.rb
+++ b/config/initializers/extends.rb
@@ -218,19 +218,22 @@ class Extends
     export_protocol_from_task: 106,
     import_inventory_items: 107,
     create_tag: 108,
-    delete_tag: 109
+    delete_tag: 109,
+    edit_image_on_result: 110,
+    edit_image_on_step: 111,
+    edit_image_on_step_in_repository: 112,
   }
 
   ACTIVITY_GROUPS = {
     projects: [*0..7, 32, 33, 34, 95, 108, 65, 109],
-    task_results: [23, 26, 25, 42, 24, 40, 41, 99],
+    task_results: [23, 26, 25, 42, 24, 40, 41, 99, 110],
     task: [8, 58, 9, 59, 10, 11, 12, 13, 14, 35, 36, 37, 53, 54, *60..64, *66..69, 106],
-    task_protocol: [15, 22, 16, 18, 19, 20, 21, 17, 38, 39, 100, 45, 46, 47],
+    task_protocol: [15, 22, 16, 18, 19, 20, 21, 17, 38, 39, 100, 111, 45, 46, 47],
     task_inventory: [55, 56],
     experiment: [*27..31, 57],
     reports: [48, 50, 49],
     inventories: [70, 71, 105, 72, 73, 74, 102, 75, 76, 77, 78, 96, 107],
-    protocol_repository: [80, 103, 89, 87, 79, 90, 91, 88, 85, 86, 84, 81, 82, 83, 101],
+    protocol_repository: [80, 103, 89, 87, 79, 90, 91, 88, 85, 86, 84, 81, 82, 83, 101, 112],
     team: [92, 94, 93, 97, 104]
   }.freeze
 end
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 7070094cf..b583e8b8e 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -1335,6 +1335,9 @@ en:
     wupi_file_editing:
       started: "editing started"
       finished: "editing finished"
+    file_editing:
+      started: "editing started"
+      finished: "editing finished"
     protocols:
       my_to_team_message: 'My protocols to Team protocols'
       team_to_my_message: 'Team protocols to My protocols'
diff --git a/config/locales/global_activities/en.yml b/config/locales/global_activities/en.yml
index 14e5b2b4f..b2afa22be 100644
--- a/config/locales/global_activities/en.yml
+++ b/config/locales/global_activities/en.yml
@@ -131,6 +131,9 @@ en:
       edit_tag_html: "%{user} edited tag <strong>%{tag}</strong> in project %{project}."
       delete_tag_html: "%{user} deleted tag <strong>%{tag}</strong> in project %{project}."
       import_inventory_items_html: "%{user} imported %{num_of_items} inventory item(s) to %{repository}."
+      edit_image_on_result_html: "%{user} edited image %{asset_name} on result %{result}: %{action}." 
+      edit_image_on_step_html: "%{user} edited image %{asset_name} on protocol's step %{step_position} %{step} on task %{my_module}: %{action}."
+      edit_image_on_step_in_repository_html: "%{user} edited image %{asset_name} on protocol %{protocol}'s step %{step_position} %{step} in Protocol repository: %{action}."
 
     activity_name:
       create_project: "Project created"
@@ -233,6 +236,9 @@ en:
       edit_tag: "Tag edited"
       delete_tag: "Tag deleted"
       import_inventory_items: "Inventory items imported"
+      edit_image_on_result: "Image on result edited"
+      edit_image_on_step: "Image on task step edited"
+      edit_image_on_step_in_repository: "Image on step edited"
 
     activity_group:
       projects: "Projects"
diff --git a/config/routes.rb b/config/routes.rb
index 725dbd367..867772d96 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -594,6 +594,7 @@ Rails.application.routes.draw do
     post 'files/create_wopi_file',
          to: 'assets#create_wopi_file',
          as: 'create_wopi_file'
+    post 'files/:id/start_edit_image', to: 'assets#create_start_edit_image_activity', as: 'start_edit_image'
 
     devise_scope :user do
       get 'avatar/:id/:style' => 'users/registrations#avatar', as: 'avatar'
diff --git a/spec/controllers/assets_controller_spec.rb b/spec/controllers/assets_controller_spec.rb
new file mode 100644
index 000000000..a4a853bb8
--- /dev/null
+++ b/spec/controllers/assets_controller_spec.rb
@@ -0,0 +1,70 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe AssetsController, type: :controller do
+  login_user
+
+  let(:user) { subject.current_user }
+  let!(:team) { create :team, created_by: user }
+  let(:user_team) { create :user_team, :admin, user: user, team: team }
+  let!(:user_project) { create :user_project, :owner, user: user }
+  let(:project) do
+    create :project, team: team, user_projects: [user_project]
+  end
+  let(:experiment) { create :experiment, project: project }
+  let(:my_module) { create :my_module, name: 'test task', experiment: experiment }
+  let(:protocol) do
+    create :protocol, my_module: my_module, team: team, added_by: user
+  end
+  let(:step) { create :step, protocol: protocol, user: user }
+  let(:step_asset_task) { create :step_asset, step: step }
+
+  let(:result) do
+    create :result, name: 'test result', my_module: my_module, user: user
+  end
+  let(:result_asset) { create :result_asset, result: result }
+
+  let(:protocol_in_repository) { create :protocol, :in_public_repository, team: team }
+  let(:step_in_repository) { create :step, protocol: protocol_in_repository, user: user }
+
+  let!(:asset) { create :asset }
+  let(:step_asset_in_repository) { create :step_asset, step: step_in_repository, asset: asset }
+
+  describe 'POST start_edit' do
+    before do
+      allow(controller).to receive(:check_edit_permission).and_return(true)
+    end
+    let(:action) { post :create_start_edit_image_activity, params: params, format: :json }
+    let!(:params) do
+      { id: nil }
+    end
+    it 'calls create activity service (start edit image on step)' do
+      params[:id] = step_asset_task.asset.id
+      expect(Activities::CreateActivityService).to receive(:call)
+        .with(hash_including(activity_type: :edit_image_on_step))
+      action
+    end
+
+    it 'calls create activity service (start edit image on result)' do
+      params[:id] = result_asset.asset.id
+      expect(Activities::CreateActivityService).to receive(:call)
+        .with(hash_including(activity_type: :edit_image_on_result))
+      action
+    end
+
+    it 'calls create activity service (start edit image on step in repository)' do
+      params[:id] = step_asset_in_repository.asset.id
+      user_team
+      expect(Activities::CreateActivityService).to receive(:call)
+        .with(hash_including(activity_type: :edit_image_on_step_in_repository))
+      action
+    end
+
+    it 'adds activity in DB' do
+      params[:id] = step_asset_task.asset.id
+      expect { action }
+        .to(change { Activity.count })
+    end
+  end
+end