diff --git a/apps/employees/middleware.py b/apps/employees/middleware.py
index a2a56ce..bd94d4f 100644
--- a/apps/employees/middleware.py
+++ b/apps/employees/middleware.py
@@ -40,6 +40,7 @@ class TwoFactorMiddleware:
         '/2fa/', '/logout/', '/accounts/login/', '/login/',
         '/set-password/', '/admin/login/', '/admin/logout/', '/i18n/',
         '/static/',
+        '/documents/onlyoffice/',  # Document Server забирает файл без сессии портала
     )
 
     def __init__(self, get_response):
diff --git a/core/admin.py b/core/admin.py
index 581e541..40de151 100644
--- a/core/admin.py
+++ b/core/admin.py
@@ -274,6 +274,11 @@ class ConnectorConfigAdmin(ModelAdmin):
         }),
         (_('Дополнительные параметры'), {
             'fields': ('extra_config',),
+            'description': _(
+                'OnlyOffice: {"public_url": "https://docs.example", '
+                '"callback_base": "https://portal.example"} — '
+                'token = JWT_SECRET Document Server. Nextcloud остаётся хранилищем файлов.'
+            ),
         }),
     )
 
diff --git a/core/migrations/0019_onlyoffice_connector.py b/core/migrations/0019_onlyoffice_connector.py
new file mode 100644
index 0000000..d5c6f5f
--- /dev/null
+++ b/core/migrations/0019_onlyoffice_connector.py
@@ -0,0 +1,30 @@
+# Generated by Django 6.0.3 on 2026-09-10
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0018_recruiting_pharmacy_access'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='connectorconfig',
+            name='connector_type',
+            field=models.CharField(
+                choices=[
+                    ('mattermost', 'Mattermost'),
+                    ('ad', 'Active Directory'),
+                    ('carbonio', 'Carbonio CE'),
+                    ('mail', 'Почта (IMAP/SMTP)'),
+                    ('nextcloud', 'Nextcloud'),
+                    ('onlyoffice', 'OnlyOffice'),
+                ],
+                max_length=20,
+                unique=True,
+                verbose_name='Тип коннектора',
+            ),
+        ),
+    ]
diff --git a/core/models/connector_config.py b/core/models/connector_config.py
index 117eb07..662d8a8 100644
--- a/core/models/connector_config.py
+++ b/core/models/connector_config.py
@@ -12,6 +12,7 @@ class ConnectorConfig(BaseModel):
         ('carbonio',   'Carbonio CE'),
         ('mail',       'Почта (IMAP/SMTP)'),
         ('nextcloud',  'Nextcloud'),
+        ('onlyoffice', 'OnlyOffice'),
     ]
 
     connector_type = models.CharField(
@@ -38,7 +39,12 @@ class ConnectorConfig(BaseModel):
     # Дополнительные параметры коннектора
     extra_config = models.JSONField(
         _('Дополнительные параметры'), default=dict, blank=True,
-        help_text=_('Специфичные для коннектора настройки в формате JSON')
+        help_text=_(
+            'JSON. Nextcloud: verify_ssl, timeout. '
+            'OnlyOffice: public_url (URL Document Server), '
+            'callback_base (публичный URL портала для скачивания/сохранения файла), '
+            'verify_ssl.'
+        ),
     )
 
     notes = models.TextField(_('Примечания'), blank=True)
diff --git a/templates/pages/documents-editor.html b/templates/pages/documents-editor.html
new file mode 100644
index 0000000..fd8c4ed
--- /dev/null
+++ b/templates/pages/documents-editor.html
@@ -0,0 +1,36 @@
+{% load i18n %}
+<div class="page-content" style="display:flex; flex-direction:column; min-height:calc(100vh - 8rem);">
+
+    <div style="display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:0.75rem; margin-bottom:0.75rem;">
+        <div>
+            <h1 style="font-size:1.125rem; font-weight:500; margin:0;">{{ filename }}</h1>
+            <p style="font-size:0.75rem; color:var(--color-muted-foreground); margin:0.25rem 0 0;">
+                {% if mode == 'edit' %}{% trans "Редактирование в OnlyOffice" %}{% else %}{% trans "Просмотр в OnlyOffice" %}{% endif %}
+            </p>
+        </div>
+        {% if back.kind == 'pharmacy' %}
+        <a href="/pharmacies/{{ back.pharmacy_id }}/"
+           class="btn btn-secondary" style="text-decoration:none;">{% trans "К аптеке" %}</a>
+        {% else %}
+        <a href="/documents/"
+           hx-get="/documents/" hx-target="#main-content" hx-push-url="/documents/" hx-indicator="#loader"
+           class="btn btn-secondary" style="text-decoration:none;">{% trans "К документам" %}</a>
+        {% endif %}
+    </div>
+
+    <div id="onlyoffice-editor"
+         style="flex:1; min-height:70vh; border:1px solid var(--color-border); border-radius:0.75rem; overflow:hidden; background:var(--color-card);"></div>
+</div>
+
+<script src="{{ api_js }}"></script>
+<script>
+(function () {
+    var cfg = {{ editor_config|safe }};
+    if (typeof DocsAPI === 'undefined') {
+        document.getElementById('onlyoffice-editor').innerHTML =
+            '<p style="padding:1.25rem; font-size:0.875rem; color:#d63333;">Не удалось загрузить OnlyOffice. Проверьте хост Document Server.</p>';
+        return;
+    }
+    new DocsAPI.DocEditor('onlyoffice-editor', cfg);
+})();
+</script>
diff --git a/templates/partials/documents-browser.html b/templates/partials/documents-browser.html
index db29c3e..694597d 100644
--- a/templates/partials/documents-browser.html
+++ b/templates/partials/documents-browser.html
@@ -44,9 +44,16 @@
                        hx-target="#documents-browser" hx-swap="innerHTML"
                        style="color:var(--color-foreground); text-decoration:none; font-weight:500;">📁 {{ f.name }}</a>
                     {% else %}
+                    {% if f.is_office and onlyoffice_ready %}
+                    <a href="/documents/edit/?section={{ section.key }}&path={{ sub|urlencode }}&name={{ f.name|urlencode }}"
+                       style="color:var(--color-primary); text-decoration:none; font-weight:500;">{{ f.name }}</a>
+                    <a href="/documents/download/?section={{ section.key }}&path={{ sub|urlencode }}&name={{ f.name|urlencode }}"
+                       style="color:var(--color-muted-foreground); font-size:0.75rem; margin-left:0.5rem; text-decoration:none;">{% trans "скачать" %}</a>
+                    {% else %}
                     <a href="/documents/download/?section={{ section.key }}&path={{ sub|urlencode }}&name={{ f.name|urlencode }}"
                        style="color:var(--color-primary); text-decoration:none;">📄 {{ f.name }}</a>
                     {% endif %}
+                    {% endif %}
                 </td>
                 <td style="padding:0.5rem 0.75rem; text-align:right; color:var(--color-muted-foreground); white-space:nowrap;">
                     {% if f.size is not None %}{{ f.size|filesizeformat }}{% endif %}
diff --git a/templates/partials/pharmacy-documents.html b/templates/partials/pharmacy-documents.html
index 805eebd..be59dd6 100644
--- a/templates/partials/pharmacy-documents.html
+++ b/templates/partials/pharmacy-documents.html
@@ -33,8 +33,13 @@
                         {% if f.is_dir %}
                             <span style="color:var(--color-foreground);">{{ f.name }}</span>
                         {% else %}
+                            {% if f.is_office and onlyoffice_ready %}
+                            <a href="/documents/edit/?pharmacy={{ pharmacy.pk }}&name={{ f.name|urlencode }}"
+                               style="color:var(--color-primary); text-decoration:none;">{{ f.name }}</a>
+                            {% else %}
                             <a href="/pharmacies/{{ pharmacy.pk }}/documents/download/?name={{ f.name|urlencode }}"
                                style="color:var(--color-primary); text-decoration:none;">{{ f.name }}</a>
+                            {% endif %}
                         {% endif %}
                     </td>
                     <td style="padding:0.5rem 0.75rem; text-align:right; color:var(--color-muted-foreground); white-space:nowrap;">