diff --git a/backend/src/db/factories.js b/backend/src/db/factories.js
index 7a8979b3c..1aa369e95 100644
--- a/backend/src/db/factories.js
+++ b/backend/src/db/factories.js
@@ -113,6 +113,9 @@ Factory.define('post')
   .attr('slug', ['slug', 'title'], (slug, title) => {
     return slug || slugify(title, { lower: true })
   })
+  .attr('language', ['language'], language => {
+    return language || 'en'
+  })
   .after(async (buildObject, options) => {
     const [post, author, categories, tags] = await Promise.all([
       neode.create('Post', buildObject),
diff --git a/backend/src/schema/resolvers/fileUpload/index.js b/backend/src/schema/resolvers/fileUpload/index.js
index 960dde7f9..df0145057 100644
--- a/backend/src/schema/resolvers/fileUpload/index.js
+++ b/backend/src/schema/resolvers/fileUpload/index.js
@@ -1,24 +1,27 @@
 import { createWriteStream } from 'fs'
 import path from 'path'
 import slug from 'slug'
+import uuid from 'uuid/v4'
 
-const storeUpload = ({ createReadStream, fileLocation }) =>
-  new Promise((resolve, reject) =>
+const localFileUpload = async ({ createReadStream, uniqueFilename }) => {
+  await new Promise((resolve, reject) =>
     createReadStream()
-      .pipe(createWriteStream(`public${fileLocation}`))
+      .pipe(createWriteStream(`public${uniqueFilename}`))
       .on('finish', resolve)
       .on('error', reject),
   )
+  return uniqueFilename
+}
 
-export default async function fileUpload(params, { file, url }, uploadCallback = storeUpload) {
+export default async function fileUpload(params, { file, url }, uploadCallback = localFileUpload) {
   const upload = params[file]
   if (upload) {
     const { createReadStream, filename } = await upload
-    const { name } = path.parse(filename)
-    const fileLocation = `/uploads/${Date.now()}-${slug(name)}`
-    await uploadCallback({ createReadStream, fileLocation })
+    const { name, ext } = path.parse(filename)
+    const uniqueFilename = `/uploads/${uuid()}-${slug(name)}${ext}`
+    const location = await uploadCallback({ createReadStream, uniqueFilename })
     delete params[file]
-    params[url] = fileLocation
+    params[url] = location
   }
 
   return params
diff --git a/backend/src/schema/resolvers/fileUpload/spec.js b/backend/src/schema/resolvers/fileUpload/spec.js
index 5767d6457..fee0bf81b 100644
--- a/backend/src/schema/resolvers/fileUpload/spec.js
+++ b/backend/src/schema/resolvers/fileUpload/spec.js
@@ -1,5 +1,7 @@
 import fileUpload from '.'
 
+const uuid = '[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}'
+
 describe('fileUpload', () => {
   let params
   let uploadCallback
@@ -13,7 +15,7 @@ describe('fileUpload', () => {
         createReadStream: jest.fn(),
       },
     }
-    uploadCallback = jest.fn()
+    uploadCallback = jest.fn(({ uniqueFilename }) => uniqueFilename)
   })
 
   it('calls uploadCallback', async () => {
@@ -24,20 +26,13 @@ describe('fileUpload', () => {
   describe('file name', () => {
     it('saves the upload url in params[url]', async () => {
       await fileUpload(params, { file: 'uploadAttribute', url: 'attribute' }, uploadCallback)
-      expect(params.attribute).toMatch(/^\/uploads\/\d+-avatar$/)
-    })
-
-    it('uses the name without file ending', async () => {
-      params.uploadAttribute.filename = 'somePng.png'
-      await fileUpload(params, { file: 'uploadAttribute', url: 'attribute' }, uploadCallback)
-      expect(params.attribute).toMatch(/^\/uploads\/\d+-somePng/)
+      expect(params.attribute).toMatch(new RegExp(`^/uploads/${uuid}-avatar.jpg`))
     })
 
     it('creates a url safe name', async () => {
-      params.uploadAttribute.filename =
-        '/path/to/awkward?/ file-location/?foo- bar-avatar.jpg?foo- bar'
+      params.uploadAttribute.filename = '/path/to/awkward?/ file-location/?foo- bar-avatar.jpg'
       await fileUpload(params, { file: 'uploadAttribute', url: 'attribute' }, uploadCallback)
-      expect(params.attribute).toMatch(/^\/uploads\/\d+-foo-bar-avatar$/)
+      expect(params.attribute).toMatch(new RegExp(`/uploads/${uuid}-foo-bar-avatar.jpg$`))
     })
 
     describe('in case of duplicates', () => {
@@ -50,7 +45,6 @@ describe('fileUpload', () => {
           uploadCallback,
         )
 
-        await new Promise(resolve => setTimeout(resolve, 1000))
         const { attribute: second } = await fileUpload(
           {
             ...params,
diff --git a/cypress/fixtures/humanconnection.png b/cypress/fixtures/humanconnection.png
new file mode 100644
index 000000000..f0576413f
Binary files /dev/null and b/cypress/fixtures/humanconnection.png differ
diff --git a/cypress/integration/common/post.js b/cypress/integration/common/post.js
index 39407ef4f..2c35cb280 100644
--- a/cypress/integration/common/post.js
+++ b/cypress/integration/common/post.js
@@ -1,5 +1,8 @@
 import { When, Then } from "cypress-cucumber-preprocessor/steps";
+import locales from '../../../webapp/locales'
+import orderBy from 'lodash/orderBy'
 
+const languages = orderBy(locales, 'name')
 const narratorAvatar =
   "https://s3.amazonaws.com/uifaces/faces/twitter/nerrsoft/128.jpg";
 
@@ -83,3 +86,71 @@ And("the post with title {string} has a ribbon for pinned posts", (title) => {
 Then("I see a toaster with {string}", (title) => {
   cy.get(".iziToast-message").should("contain", title);
 })
+
+Then("I should be able to {string} a teaser image", condition => {
+  let teaserImageUpload = "onourjourney.png";
+  if (condition === 'change') teaserImageUpload = "humanconnection.png";
+  cy.fixture(teaserImageUpload).as('postTeaserImage').then(function() {
+    cy.get("#postdropzone").upload(
+      { fileContent: this.postTeaserImage, fileName: teaserImageUpload, mimeType: "image/png" },
+      { subjectType: "drag-n-drop", force: true }
+    );
+  })
+})
+
+Then('confirm crop', () => {
+  cy.get('.crop-confirm')
+    .click()
+})
+
+Then("I add all required fields", () => {
+  cy.get('input[name="title"]')
+    .type('new post')
+    .get(".editor .ProseMirror")
+    .type('new post content')
+    .get(".base-button")
+    .contains("Just for Fun")
+    .click()
+    .get('.ds-flex-item > .ds-form-item .ds-select ')
+    .click()
+    .get('.ds-select-option')
+    .eq(languages.findIndex(l => l.code === 'en'))
+    .click()
+})
+
+Then("the post was saved successfully with the {string} teaser image", condition => {
+  cy.get(".ds-card-content > .ds-heading")
+    .should("contain", condition === 'new' ? 'new post' : 'to be updated')
+    .get(".content")
+    .should("contain", condition === 'new' ? 'new post content' : 'successfully updated')
+    .get('.post-page img')
+    .should("have.attr", "src")
+    .and("contains", condition === 'new' ? "onourjourney" : "humanconnection")
+})
+
+Then("the first image should be removed from the preview", () => {
+  cy.fixture("humanconnection.png").as('postTeaserImage').then(function() {
+    cy.get("#postdropzone")
+      .children()
+      .get('img.thumbnail-preview')
+      .should('have.length', 1)
+      .and('have.attr', 'src')
+      .and('contain', this.postTeaserImage)
+  })
+})
+
+Then('the post was saved successfully without a teaser image', () => {
+  cy.get(".ds-card-content > .ds-heading")
+    .should("contain", 'new post')
+    .get(".content")
+    .should("contain", 'new post content')
+    .get('.post-page')
+    .should('exist')
+    .get('.post-page img.ds-card-image')
+    .should('not.exist')
+})
+
+Then('I should be able to remove it', () => {
+  cy.get('.crop-cancel')
+    .click()
+})
\ No newline at end of file
diff --git a/cypress/integration/post/ImageUploader.feature b/cypress/integration/post/ImageUploader.feature
new file mode 100644
index 000000000..061001ffb
--- /dev/null
+++ b/cypress/integration/post/ImageUploader.feature
@@ -0,0 +1,47 @@
+Feature: Upload Teaser Image
+  As a user
+  I would like to be able to add a teaser image to my Post
+  So that I can personalize my posts
+
+
+  Background:
+    Given I have a user account
+    Given I am logged in
+    Given we have the following posts in our database:
+      | authorId         | id | title              | content              | 
+      | id-of-peter-pan  | p1 | Post to be updated | successfully updated |
+
+  Scenario: Create a Post with a Teaser Image
+    When I click on the big plus icon in the bottom right corner to create post
+    Then I should be able to "add" a teaser image
+    And confirm crop
+    And I add all required fields
+    And I click on "Save"
+    Then I get redirected to ".../new-post"
+    And the post was saved successfully with the "new" teaser image
+
+  Scenario: Update a Post to add an image
+    Given I am on the 'post/edit/p1' page
+    And I should be able to "change" a teaser image
+    And confirm crop
+    And I click on "Save"
+    Then I see a toaster with "Saved!"
+    And I get redirected to ".../post-to-be-updated"
+    Then the post was saved successfully with the "updated" teaser image
+  
+  Scenario: Add image, then add a different image
+    When I click on the big plus icon in the bottom right corner to create post
+    Then I should be able to "add" a teaser image
+    And confirm crop
+    And I should be able to "change" a teaser image
+    And confirm crop
+    And the first image should be removed from the preview
+
+  Scenario: Add image, then delete it
+    When I click on the big plus icon in the bottom right corner to create post
+    Then I should be able to "add" a teaser image
+    And I should be able to remove it
+    And I add all required fields
+    And I click on "Save"
+    Then I get redirected to ".../new-post"
+    And the post was saved successfully without a teaser image
\ No newline at end of file
diff --git a/webapp/components/TeaserImage/TeaserImage.vue b/webapp/components/TeaserImage/TeaserImage.vue
index 5943526c7..82ab65318 100644
--- a/webapp/components/TeaserImage/TeaserImage.vue
+++ b/webapp/components/TeaserImage/TeaserImage.vue
@@ -68,6 +68,7 @@ export default {
       oldImage: null,
       error: false,
       showCropper: false,
+      imageAspectRatio: null,
     }
   },
   methods: {
@@ -113,29 +114,41 @@ export default {
     },
     cropImage() {
       this.showCropper = false
+      if (this.file.type === 'image/png' || this.file.type === 'image/svg+xml') {
+        this.uploadSvgOrPng()
+      } else {
+        this.uploadJpeg()
+      }
+    },
+    uploadSvgOrPng() {
+      this.imageAspectRatio = this.file.width / this.file.height || 1.0
+      this.image = new Image()
+      this.image.src = this.file.dataURL
+      this.setupPreview()
+      this.emitImageData(this.file)
+    },
+    uploadJpeg() {
       const canvas = this.cropper.getCroppedCanvas()
       canvas.toBlob(blob => {
-        const imageAspectRatio = canvas.width / canvas.height
-        this.setupPreview(canvas)
-        this.removeCropper()
+        this.imageAspectRatio = canvas.width / canvas.height
+        this.image = new Image()
+        this.image.src = canvas.toDataURL()
+        this.setupPreview()
         const croppedImageFile = new File([blob], this.file.name, { type: this.file.type })
-        this.$emit('addTeaserImage', croppedImageFile)
-        this.$emit('addImageAspectRatio', imageAspectRatio)
+        this.emitImageData(croppedImageFile)
       }, 'image/jpeg')
     },
-    setupPreview(canvas) {
-      this.image = new Image()
-      this.image.src = canvas.toDataURL()
+    setupPreview() {
       this.image.classList.add('thumbnail-preview')
       this.thumbnailElement.appendChild(this.image)
     },
     cancelCrop() {
-      this.showCropper = false
       if (this.oldImage) this.thumbnailElement.appendChild(this.oldImage)
-      this.removeCropper()
+      this.showCropper = false
     },
-    removeCropper() {
-      this.editor.removeChild(document.querySelectorAll('.cropper-container')[0])
+    emitImageData(imageFile) {
+      this.$emit('addTeaserImage', imageFile)
+      this.$emit('addImageAspectRatio', this.imageAspectRatio)
     },
   },
 }