diff --git a/server/services/deadlines.js b/server/services/deadlines.js
index a06bb9d..c34a0ae 100644
--- a/server/services/deadlines.js
+++ b/server/services/deadlines.js
@@ -20,7 +20,7 @@ const wallFormat = new Intl.DateTimeFormat('en-US', {
 })
 
 // Kalendertag (YYYY-MM-DD) in Deutschland
-const berlinDay = (date) => dayFormat.format(new Date(date))
+export const berlinDay = (date) => dayFormat.format(new Date(date))
 
 // Reine Kalendertage rechnen wir als UTC-Mitternacht, damit Sommer-/Winterzeit keine Rolle spielt
 const dayToDate = (ymd) => new Date(`${ymd}T00:00:00Z`)
@@ -88,7 +88,7 @@ function berlinOffset(t) {
 }
 
 /** Zeitpunkt "Tag ymd, Uhrzeit in Deutschland" als Date (die Zeitumstellung liegt nie auf den genutzten Uhrzeiten). */
-function berlinTime(ymd, hour, minute = 0, second = 0, ms = 0) {
+export function berlinTime(ymd, hour, minute = 0, second = 0, ms = 0) {
   const [y, mo, d] = ymd.split('-').map(Number)
   const wall = Date.UTC(y, mo - 1, d, hour, minute, second, ms)
   const guess = wall - berlinOffset(wall)
diff --git a/server/services/newsImages.js b/server/services/newsImages.js
index 39d030a..2ddb5ee 100644
--- a/server/services/newsImages.js
+++ b/server/services/newsImages.js
@@ -84,6 +84,13 @@ async function readSidecar(projectId, imageId) {
   }
 }
 
+/** Breite und Hoehe eines Bildes des Projekts, null wenn es nicht existiert. */
+export async function readNewsImageMeta(projectId, imageId) {
+  if (!safeId(projectId) || !safeId(imageId)) return null
+  const meta = await readSidecar(projectId, imageId)
+  return meta ? { w: meta.w, h: meta.h } : null
+}
+
 /** Markiert ein Bild als an einen Beitrag gebunden (wird nicht mehr aufgeraeumt). */
 export async function claimNewsImage(projectId, imageId) {
   if (!safeId(projectId) || !safeId(imageId)) return
diff --git a/server/services/newsPosts.js b/server/services/newsPosts.js
new file mode 100644
index 0000000..b84097e
--- /dev/null
+++ b/server/services/newsPosts.js
@@ -0,0 +1,188 @@
+import { config } from '../config.js'
+import { createDocument, deleteDocument, getDocument, listDocuments, updateDocument, Query } from './appwriteAdmin.js'
+import { berlinDay, berlinTime } from './deadlines.js'
+import { claimNewsImage, deleteNewsImage, readNewsImageMeta } from './newsImages.js'
+import { addMonths } from './stripeBilling.js'
+
+/**
+ * News-Beitraege der Pinnwand: Zettel (Notiz, Foto oder beides) mit Anzeigedauer.
+ * Zeiten stehen als ISO-Strings im Dokument; "hängend" = nicht abgenommen, sichtbar ab, nicht abgelaufen.
+ */
+
+export const DURATIONS = ['1w', '2w', '1m', '3m', 'open', 'date']
+export const PAPERS = ['sun', 'sky', 'coral', 'white']
+export const TYPES = ['note', 'photo', 'combo']
+export const TITLE_MAX = 60
+export const TEXT_MAX = 400
+export const PAGE_SIZE = 6
+
+const DAY_MS = 24 * 60 * 60 * 1000
+const DATE_RE = /^\d{4}-\d{2}-\d{2}$/
+
+function httpError(status, message, field) {
+  const err = Object.assign(new Error(message), { status })
+  if (field) err.field = field
+  return err
+}
+
+const plusCalendarDays = (ymd, n) => {
+  const [y, m, d] = ymd.split('-').map(Number)
+  return new Date(Date.UTC(y, m - 1, d + n)).toISOString().slice(0, 10)
+}
+
+/**
+ * Ende der Anzeige. `from` ist der Beginn, `now` der Bezugspunkt fuer die Datumsgrenzen (Standard: from).
+ * `date`: 23:59:59.999 Europe/Berlin, fruehestens morgen, hoechstens heute + 1 Jahr.
+ */
+export function visibleUntilFor(duration, from, dateIso, now = from) {
+  switch (duration) {
+    case '1w': return new Date(from.getTime() + 7 * DAY_MS)
+    case '2w': return new Date(from.getTime() + 14 * DAY_MS)
+    case '1m': return addMonths(from, 1)
+    case '3m': return addMonths(from, 3)
+    case 'open': return null
+    case 'date': {
+      if (typeof dateIso !== 'string' || !DATE_RE.test(dateIso) || Number.isNaN(Date.parse(dateIso))) {
+        throw httpError(400, 'Bitte wähle ein gültiges Datum.', 'date')
+      }
+      const today = berlinDay(now)
+      const latest = addMonths(new Date(`${today}T00:00:00Z`), 12).toISOString().slice(0, 10)
+      if (dateIso < plusCalendarDays(today, 1)) throw httpError(400, 'Das Datum muss mindestens morgen sein.', 'date')
+      if (dateIso > latest) throw httpError(400, 'Das Datum darf höchstens ein Jahr in der Zukunft liegen.', 'date')
+      return berlinTime(dateIso, 23, 59, 59, 999)
+    }
+    default:
+      throw httpError(400, 'Bitte wähle eine Anzeigedauer.', 'duration')
+  }
+}
+
+export function isHanging(post, now) {
+  if (post.takenDownAt) return false
+  const t = now.getTime()
+  if (post.visibleFrom && Date.parse(post.visibleFrom) > t) return false
+  if (post.visibleUntil && t >= Date.parse(post.visibleUntil)) return false
+  return true
+}
+
+export function validatePostInput(input) {
+  const src = input && typeof input === 'object' ? input : {}
+  const str = (v) => (typeof v === 'string' ? v.trim() : '')
+  const type = src.type
+  if (!TYPES.includes(type)) throw httpError(400, 'Bitte wähle eine Art von Beitrag.', 'type')
+  const title = str(src.title)
+  if (!title) throw httpError(400, 'Bitte gib einen Titel ein.', 'title')
+  if (title.length > TITLE_MAX) throw httpError(400, `Der Titel darf höchstens ${TITLE_MAX} Zeichen lang sein.`, 'title')
+  const text = str(src.text)
+  if (text.length > TEXT_MAX) throw httpError(400, `Der Text darf höchstens ${TEXT_MAX} Zeichen lang sein.`, 'text')
+  if ((type === 'note' || type === 'combo') && !text) throw httpError(400, 'Bitte gib einen Text ein.', 'text')
+  const imageId = str(src.imageId)
+  if ((type === 'photo' || type === 'combo') && !imageId) throw httpError(400, 'Bitte lade ein Foto hoch.', 'imageId')
+  if (!PAPERS.includes(src.paper)) throw httpError(400, 'Bitte wähle eine Zettelfarbe.', 'paper')
+  if (!DURATIONS.includes(src.duration)) throw httpError(400, 'Bitte wähle eine Anzeigedauer.', 'duration')
+  const out = {
+    type, title,
+    text, // bei reinem Foto ist ein Text optional
+    paper: src.paper, duration: src.duration,
+  }
+  if (src.duration === 'date') out.date = src.date
+  if (type !== 'note') out.imageId = imageId
+  return out
+}
+
+const byNewest = (a, b) =>
+  Date.parse(b.visibleFrom) - Date.parse(a.visibleFrom) || Date.parse(b.createdAt) - Date.parse(a.createdAt)
+
+async function projectPosts(projectId) {
+  return listDocuments(config.collections.newsPosts, [Query.equal('projectId', projectId), Query.limit(1000)])
+}
+
+export async function listPosts(projectId, now = new Date()) {
+  const posts = (await projectPosts(projectId)).sort(byNewest)
+  return {
+    hanging: posts.filter((p) => isHanging(p, now)),
+    expired: posts.filter((p) => !isHanging(p, now)),
+  }
+}
+
+async function requireImage(projectId, imageId) {
+  if (!(await readNewsImageMeta(projectId, imageId))) throw httpError(400, 'Das Foto wurde nicht gefunden. Bitte lade es erneut hoch.', 'imageId')
+}
+
+export async function createPost({ customerId, projectId, input, now = new Date() }) {
+  const v = validatePostInput(input)
+  const until = visibleUntilFor(v.duration, now, v.date, now)
+  if (v.imageId) await requireImage(projectId, v.imageId)
+  const iso = now.toISOString()
+  const doc = await createDocument(config.collections.newsPosts, {
+    customerId, projectId,
+    type: v.type, title: v.title, text: v.text,
+    imageId: v.imageId || null,
+    paper: v.paper, duration: v.duration,
+    visibleFrom: iso, visibleUntil: until ? until.toISOString() : null,
+    takenDownAt: null, createdAt: iso, updatedAt: iso,
+  })
+  if (v.imageId) await claimNewsImage(projectId, v.imageId)
+  return doc
+}
+
+async function ownPost(customerId, projectId, id) {
+  let post
+  try {
+    post = await getDocument(config.collections.newsPosts, id)
+  } catch (err) {
+    if (err.status === 404) throw httpError(404, 'Beitrag nicht gefunden.')
+    throw err
+  }
+  if (post.customerId !== customerId || post.projectId !== projectId) throw httpError(403, 'Kein Zugriff auf diesen Beitrag.')
+  return post
+}
+
+export async function updatePost({ customerId, projectId, id, input, now = new Date() }) {
+  const post = await ownPost(customerId, projectId, id)
+  const iso = now.toISOString()
+  const action = input && input.action
+  let patch
+  let oldImageId = null
+  if (action === 'takeDown') {
+    patch = { takenDownAt: iso }
+  } else if (action === 'rehang') {
+    const duration = input.duration
+    const until = visibleUntilFor(duration, now, input.date, now)
+    patch = { duration, visibleFrom: iso, visibleUntil: until ? until.toISOString() : null, takenDownAt: null }
+  } else {
+    const v = validatePostInput(input)
+    // Relative Dauern zaehlen ab dem urspruenglichen Beginn, damit ein Bearbeiten nichts verlaengert
+    const from = new Date(post.visibleFrom)
+    const until = visibleUntilFor(v.duration, from, v.date, now)
+    const imageId = v.imageId || null
+    if (imageId && imageId !== post.imageId) await requireImage(projectId, imageId)
+    patch = {
+      type: v.type, title: v.title, text: v.text, paper: v.paper, duration: v.duration,
+      visibleUntil: until ? until.toISOString() : null, imageId,
+    }
+    if (post.imageId && post.imageId !== imageId) oldImageId = post.imageId
+    if (imageId && imageId !== post.imageId) await claimNewsImage(projectId, imageId)
+  }
+  const doc = await updateDocument(config.collections.newsPosts, id, { ...patch, updatedAt: iso })
+  if (oldImageId) await deleteNewsImage(projectId, oldImageId)
+  return doc
+}
+
+export async function deletePost({ customerId, projectId, id }) {
+  const post = await ownPost(customerId, projectId, id)
+  await deleteDocument(config.collections.newsPosts, id)
+  if (post.imageId) await deleteNewsImage(projectId, post.imageId)
+}
+
+/** Oeffentliche Seite der Website: nur haengende Beitraege, ohne interne Felder, 6 je Seite. */
+export async function publicPage(projectId, page, now = new Date()) {
+  const n = Math.max(1, Math.floor(Number(page)) || 1)
+  const { hanging } = await listPosts(projectId, now)
+  const slice = hanging.slice((n - 1) * PAGE_SIZE, n * PAGE_SIZE)
+  const posts = []
+  for (const p of slice) {
+    const image = p.imageId ? await readNewsImageMeta(projectId, p.imageId) : null
+    posts.push({ id: p.$id, type: p.type, title: p.title, text: p.text, paper: p.paper, date: berlinDay(p.visibleFrom), image })
+  }
+  return { posts, hasMore: hanging.length > n * PAGE_SIZE }
+}
diff --git a/test/newsPosts.test.js b/test/newsPosts.test.js
new file mode 100644
index 0000000..b24306d
--- /dev/null
+++ b/test/newsPosts.test.js
@@ -0,0 +1,120 @@
+import { test, after } from 'node:test'
+import assert from 'node:assert/strict'
+import os from 'node:os'
+import path from 'node:path'
+import { mkdtempSync } from 'node:fs'
+import sharp from 'sharp'
+import { startAppwriteMock } from './support/appwriteMock.js'
+import { startFakeStripe } from './support/fakeStripe.js'
+import { useTestEnv } from './support/testEnv.js'
+import { schemaKeys } from './support/schema.js'
+
+process.env.NEWS_UPLOAD_DIR = mkdtempSync(path.join(os.tmpdir(), 'news-posts-'))
+const aw = await startAppwriteMock({ schema: { newsPosts: schemaKeys('newsPosts') } })
+const st = await startFakeStripe()
+after(() => Promise.all([aw.close(), st.close()]))
+useTestEnv({ appwriteUrl: aw.url, stripeUrl: st.url })
+const np = await import('../server/services/newsPosts.js')
+const { storeNewsImage, newsImagePath } = await import('../server/services/newsImages.js')
+const { existsSync } = await import('node:fs')
+const { addMonths } = await import('../server/services/stripeBilling.js')
+
+const NOW = new Date('2026-10-01T10:00:00.000Z')
+const base = { type: 'note', title: 'Hallo', text: 'Wir haben offen', paper: 'sun', duration: '1m' }
+const mk = (projectId, input = {}, now = NOW) => np.createPost({ customerId: 'c1', projectId, input: { ...base, ...input }, now })
+const png = () => sharp({ create: { width: 40, height: 30, channels: 3, background: '#c33' } }).png().toBuffer()
+
+test('ablauf_grenzen_berlin', async () => {
+  const until = np.visibleUntilFor('date', NOW, '2026-10-25')
+  assert.equal(until.toISOString(), '2026-10-25T22:59:59.999Z')
+  const post = { visibleFrom: NOW.toISOString(), visibleUntil: until.toISOString(), takenDownAt: null }
+  assert.equal(np.isHanging(post, new Date(until.getTime() - 1)), true)
+  assert.equal(np.isHanging(post, until), false)
+  const open = { visibleFrom: NOW.toISOString(), visibleUntil: null, takenDownAt: null }
+  assert.equal(np.isHanging(open, new Date('2030-01-01')), true)
+  assert.equal(np.isHanging({ ...open, takenDownAt: NOW.toISOString() }, new Date('2026-10-02')), false)
+})
+
+test('dauer_werte', () => {
+  assert.equal(np.visibleUntilFor('1w', NOW).getTime() - NOW.getTime(), 7 * 86400000)
+  assert.equal(np.visibleUntilFor('2w', NOW).getTime() - NOW.getTime(), 14 * 86400000)
+  const jan = new Date('2027-01-31T09:00:00.000Z')
+  assert.equal(np.visibleUntilFor('1m', jan).toISOString(), addMonths(jan, 1).toISOString())
+  assert.equal(np.visibleUntilFor('1m', jan).toISOString(), '2027-02-28T09:00:00.000Z')
+  assert.equal(np.visibleUntilFor('3m', NOW).toISOString(), addMonths(NOW, 3).toISOString())
+  assert.equal(np.visibleUntilFor('open', NOW), null)
+})
+
+test('datum_grenzen_400', () => {
+  assert.throws(() => np.visibleUntilFor('date', NOW, '2026-10-01'), { status: 400, field: 'date' })
+  assert.throws(() => np.visibleUntilFor('date', NOW, '2027-10-02'), { status: 400 })
+  assert.throws(() => np.visibleUntilFor('date', NOW, 'morgen'), { status: 400 })
+  assert.ok(np.visibleUntilFor('date', NOW, '2026-10-02'))
+  assert.ok(np.visibleUntilFor('date', NOW, '2027-10-01'))
+})
+
+test('validierung', () => {
+  assert.throws(() => np.validatePostInput({ ...base, title: 'x'.repeat(61) }), { status: 400, field: 'title' })
+  assert.throws(() => np.validatePostInput({ ...base, type: 'photo' }), { status: 400, field: 'imageId' })
+  assert.throws(() => np.validatePostInput({ ...base, paper: 'lila' }), { status: 400, field: 'paper' })
+  assert.throws(() => np.validatePostInput({ ...base, text: '' }), { status: 400, field: 'text' })
+  assert.throws(() => np.validatePostInput({ ...base, text: 'x'.repeat(401) }), { status: 400, field: 'text' })
+  assert.throws(() => np.validatePostInput({ ...base, type: 'combo', imageId: 'i1', text: '' }), { status: 400, field: 'text' })
+  assert.equal(np.validatePostInput({ ...base, type: 'photo', text: '', imageId: 'i1' }).imageId, 'i1')
+})
+
+test('abnehmen_und_wieder_aufhaengen', async () => {
+  const post = await mk('pa')
+  assert.equal((await np.listPosts('pa', NOW)).hanging.length, 1)
+  const later = new Date('2026-10-05T08:00:00.000Z')
+  await np.updatePost({ customerId: 'c1', projectId: 'pa', id: post.$id, input: { action: 'takeDown' }, now: later })
+  const l1 = await np.listPosts('pa', later)
+  assert.equal(l1.hanging.length, 0)
+  assert.equal(l1.expired.length, 1)
+  const re = await np.updatePost({ customerId: 'c1', projectId: 'pa', id: post.$id, input: { action: 'rehang', duration: '2w' }, now: later })
+  assert.equal(re.visibleFrom, later.toISOString())
+  assert.equal(re.visibleUntil, new Date(later.getTime() + 14 * 86400000).toISOString())
+  assert.equal((await np.listPosts('pa', later)).hanging.length, 1)
+})
+
+test('oeffentlich_nur_haengende_ohne_interna', async () => {
+  for (let i = 0; i < 8; i++) await mk('pb', { title: `Beitrag ${i}` }, new Date(NOW.getTime() + i * 1000))
+  for (let i = 0; i < 2; i++) await mk('pb', { duration: '1w' }, new Date('2026-09-01T10:00:00.000Z'))
+  const { imageId } = await storeNewsImage({ customerId: 'c1', projectId: 'pb', buffer: await png() })
+  await mk('pb', { type: 'combo', imageId, title: 'Mit Foto' }, new Date(NOW.getTime() + 60000))
+  const after10 = new Date(NOW.getTime() + 120000)
+  const p1 = await np.publicPage('pb', 1, after10)
+  assert.equal(p1.posts.length, 6)
+  assert.equal(p1.hasMore, true)
+  assert.equal(p1.posts[0].title, 'Mit Foto')
+  assert.deepEqual(p1.posts[0].image, { w: 40, h: 30 })
+  assert.equal(p1.posts[0].date, '2026-10-01')
+  assert.equal(p1.posts[1].image, null)
+  for (const p of p1.posts) {
+    assert.deepEqual(Object.keys(p).sort(), ['date', 'id', 'image', 'paper', 'text', 'title', 'type'])
+  }
+  const p2 = await np.publicPage('pb', 2, after10)
+  assert.equal(p2.posts.length, 3)
+  assert.equal(p2.hasMore, false)
+})
+
+test('fremder_kunde_kann_nicht_aendern', async () => {
+  const post = await mk('pc')
+  await assert.rejects(np.updatePost({ customerId: 'c2', projectId: 'pc', id: post.$id, input: { action: 'takeDown' }, now: NOW }), { status: 403 })
+  await assert.rejects(np.updatePost({ customerId: 'c1', projectId: 'other', id: post.$id, input: { action: 'takeDown' }, now: NOW }), { status: 403 })
+  await assert.rejects(np.deletePost({ customerId: 'c2', projectId: 'pc', id: post.$id }), { status: 403 })
+  await assert.rejects(np.deletePost({ customerId: 'c1', projectId: 'pc', id: 'gibtsnicht' }), { status: 404 })
+})
+
+test('bild_gehoert_zum_projekt_und_wird_mitgeloescht', async () => {
+  const a = await storeNewsImage({ customerId: 'c1', projectId: 'pd', buffer: await png() })
+  await assert.rejects(mk('pe', { type: 'photo', imageId: a.imageId }), { status: 400, field: 'imageId' })
+  const post = await mk('pd', { type: 'photo', imageId: a.imageId })
+  const b = await storeNewsImage({ customerId: 'c1', projectId: 'pd', buffer: await png() })
+  await np.updatePost({ customerId: 'c1', projectId: 'pd', id: post.$id, input: { ...base, type: 'photo', imageId: b.imageId }, now: NOW })
+  assert.equal(existsSync(newsImagePath('pd', a.imageId, 'l')), false)
+  assert.equal(existsSync(newsImagePath('pd', b.imageId, 'l')), true)
+  await np.deletePost({ customerId: 'c1', projectId: 'pd', id: post.$id })
+  assert.equal(existsSync(newsImagePath('pd', b.imageId, 'l')), false)
+  assert.equal((await np.listPosts('pd', NOW)).hanging.length, 0)
+})