diff --git a/inc/poche/config.inc.default.php b/inc/poche/config.inc.default.php
index 3eaee3a3e..a159e713c 100755
--- a/inc/poche/config.inc.default.php
+++ b/inc/poche/config.inc.default.php
@@ -52,6 +52,12 @@
 @define ('FLATTRABLE', '1');
 @define ('FLATTRED', '2');
 @define ('CARROT', FALSE);
+
+// ebook
+@define ('EPUB', TRUE);
+@define ('MOBI', FALSE);
+@define ('PDF', FALSE);
+
 // display or not print link in article view
 @define ('SHOW_PRINTLINK', '1');
 // display or not percent of read in article view. Affects only default theme.
diff --git a/themes/baggy/home.twig b/themes/baggy/home.twig
index 426ead1d1..abebe455f 100755
--- a/themes/baggy/home.twig
+++ b/themes/baggy/home.twig
@@ -61,17 +61,17 @@
             {% if searchterm is defined %}<a title="{% trans "Tag these results as" %} {{ searchterm }}" href="./?action=add_tag&search={{ searchterm }}">{% trans "Tag these results as" %} {{ searchterm }}</a>{% endif %}<br />
             
             {% if tag %}
-            <a title="{% trans "Download the articles from this tag in an epub file" %}" href="./?epub&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as ePub3" %}</a>
-            <a title="{% trans "Download the articles from this tag in a mobi file" %}" href="./?mobi&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as Mobi" %}</a>
-            <a title="{% trans "Download the articles from this tag in a pdf file" %}" href="./?pdf&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as PDF" %}</a>
+            {% if constant('EPUB') == 1 %}<a title="{% trans "Download the articles from this tag in an epub file" %}" href="./?epub&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as ePub3" %}</a>{% endif %}
+            {% if constant('MOBI') == 1 %}<a title="{% trans "Download the articles from this tag in a mobi file" %}" href="./?mobi&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as Mobi" %}</a>{% endif %}
+            {% if constant('PDF') == 1 %}<a title="{% trans "Download the articles from this tag in a pdf file" %}" href="./?pdf&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as PDF" %}</a>{% endif %}
             {% elseif searchterm is defined %}
-            <a title="{% trans "Download the articles from this search in an epub" %}" href="./?epub&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as ePub3" %}</a>
-            <a title="{% trans "Download the articles from this search in a mobi file" %}" href="./?mobi&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as Mobi" %}</a>
-            <a title="{% trans "Download the articles from this search in a pdf file" %}" href="./?pdf&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as PDF" %}</a>
+            {% if constant('EPUB') == 1 %}<a title="{% trans "Download the articles from this search in an epub" %}" href="./?epub&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as ePub3" %}</a>{% endif %}
+            {% if constant('MOBI') == 1 %}<a title="{% trans "Download the articles from this search in a mobi file" %}" href="./?mobi&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as Mobi" %}</a>{% endif %}
+            {% if constant('PDF') == 1 %}<a title="{% trans "Download the articles from this search in a pdf file" %}" href="./?pdf&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as PDF" %}</a>{% endif %}
             {% else %}
-            <a title="{% trans "Download the articles from this category in an epub" %}" href="./?epub&amp;method=category&amp;value={{ view }}">{% trans "Download as ePub3" %}</a>
-            <a title="{% trans "Download the articles from this category in a mobi file" %}" href="./?mobi&amp;method=category&amp;value={{ view }}">{% trans "Download as Mobi" %}</a>
-            <a title="{% trans "Download the articles from this category in a pdf file" %}" href="./?pdf&amp;method=category&amp;value={{ view }}">{% trans "Download as PDF" %}</a>
+            {% if constant('EPUB') == 1 %}<a title="{% trans "Download the articles from this category in an epub" %}" href="./?epub&amp;method=category&amp;value={{ view }}">{% trans "Download as ePub3" %}</a>{% endif %}
+            {% if constant('MOBI') == 1 %}<a title="{% trans "Download the articles from this category in a mobi file" %}" href="./?mobi&amp;method=category&amp;value={{ view }}">{% trans "Download as Mobi" %}</a>{% endif %}
+            {% if constant('PDF') == 1 %}<a title="{% trans "Download the articles from this category in a pdf file" %}" href="./?pdf&amp;method=category&amp;value={{ view }}">{% trans "Download as PDF" %}</a>{% endif %}
             {% endif %}
 {% endif %}
 {% endblock %}
diff --git a/themes/baggy/view.twig b/themes/baggy/view.twig
index dd2743277..1afd9df6a 100755
--- a/themes/baggy/view.twig
+++ b/themes/baggy/view.twig
@@ -19,9 +19,9 @@
                 {% if constant('FLATTR') == 1 %}{% if flattr.status == constant('FLATTRABLE') %}<li><a href="http://flattr.com/submit/auto?url={{ entry.url }}" class="tool flattr icon icon-flattr" target="_blank" title="{% trans "flattr" %}"><span>{% trans "flattr" %}</span></a></li>{% elseif flattr.status == constant('FLATTRED') %}<li><a href="{{ flattr.flattrItemURL }}" class="tool flattr icon icon-flattr" target="_blank" title="{% trans "flattr" %}"><span>{% trans "flattr" %}</span> ({{ flattr.numFlattrs }})</a></li>{% endif %}{% endif %}
                 {% if constant('CARROT') == 1 %}<li><a href="https://secure.carrot.org/GiveAndGetBack.do?url={{ entry.url|url_encode }}&title={{ entry.title|url_encode }}" class="tool carrot icon-image icon-image--carrot" target="_blank" title="{% trans "carrot" %}"><span>Carrot</span></a></li>{% endif %}
                 {% if constant('SHOW_PRINTLINK') == 1 %}<li><a title="{% trans "Print" %}" class="tool icon icon-print" href="javascript: window.print();"><span>{% trans "Print" %}</span></a></li>{% endif %}
-                <li><a href="./?epub&amp;method=id&amp;value={{ entry.id|e }}" title="Generate ePub file">EPUB</a></li>
-                <li><a href="./?mobi&amp;method=id&amp;value={{ entry.id|e }}" title="Generate Mobi file">MOBI</a></li>
-                <li><a href="./?pdf&amp;method=id&amp;value={{ entry.id|e }}" title="Generate PDF file">PDF</a></li>
+                {% if constant('EPUB') == 1 %}<li><a href="./?epub&amp;method=id&amp;value={{ entry.id|e }}" title="Generate ePub file">EPUB</a></li>{% endif %}
+                {% if constant('MOBI') == 1 %}<li><a href="./?mobi&amp;method=id&amp;value={{ entry.id|e }}" title="Generate Mobi file">MOBI</a></li>{% endif %}
+                {% if constant('PDF') == 1 %}<li><a href="./?pdf&amp;method=id&amp;value={{ entry.id|e }}" title="Generate PDF file">PDF</a></li>{% endif %}
                 <li><a href="mailto:hello@wallabag.org?subject=Wrong%20display%20in%20wallabag&amp;body={{ entry.url|url_encode }}" title="{% trans "Does this article appear wrong?" %}" class="tool bad-display icon icon-delete"><span>{% trans "Does this article appear wrong?" %}</span></a></li>
             </ul>
         </div>
diff --git a/themes/default/home.twig b/themes/default/home.twig
index 59615691c..c5db58024 100755
--- a/themes/default/home.twig
+++ b/themes/default/home.twig
@@ -61,17 +61,17 @@
             {% if searchterm is defined %}<a title="{% trans "Tag these results as" %} {{ searchterm }}" href="./?action=add_tag&search={{ searchterm }}">{% trans "Tag these results as" %} {{ searchterm }}</a>{% endif %}<br />
             
             {% if tag %}
-            <a title="{% trans "Download the articles from this tag in an epub file" %}" href="./?epub&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as ePub3" %}</a>
-            <a title="{% trans "Download the articles from this tag in a mobi file" %}" href="./?mobi&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as Mobi" %}</a>
-            <a title="{% trans "Download the articles from this tag in a pdf file" %}" href="./?pdf&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as PDF" %}</a>
+            {% if constant('EPUB') == 1 %}<a title="{% trans "Download the articles from this tag in an epub file" %}" href="./?epub&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as ePub3" %}</a>{% endif %}
+            {% if constant('MOBI') == 1 %}<a title="{% trans "Download the articles from this tag in a mobi file" %}" href="./?mobi&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as Mobi" %}</a>{% endif %}
+            {% if constant('PDF') == 1 %}<a title="{% trans "Download the articles from this tag in a pdf file" %}" href="./?pdf&amp;method=tag&amp;value={{ tag.value }}">{% trans "Download as PDF" %}</a>{% endif %}
             {% elseif searchterm is defined %}
-            <a title="{% trans "Download the articles from this search in an epub" %}" href="./?epub&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as ePub3" %}</a>
-            <a title="{% trans "Download the articles from this search in a mobi file" %}" href="./?mobi&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as Mobi" %}</a>
-            <a title="{% trans "Download the articles from this search in a pdf file" %}" href="./?pdf&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as PDF" %}</a>
+            {% if constant('EPUB') == 1 %}<a title="{% trans "Download the articles from this search in an epub" %}" href="./?epub&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as ePub3" %}</a>{% endif %}
+            {% if constant('MOBI') == 1 %}<a title="{% trans "Download the articles from this search in a mobi file" %}" href="./?mobi&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as Mobi" %}</a>{% endif %}
+            {% if constant('PDF') == 1 %}<a title="{% trans "Download the articles from this search in a pdf file" %}" href="./?pdf&amp;method=search&amp;value={{ searchterm }}">{% trans "Download as PDF" %}</a>{% endif %}
             {% else %}
-            <a title="{% trans "Download the articles from this category in an epub" %}" href="./?epub&amp;method=category&amp;value={{ view }}">{% trans "Download as ePub3" %}</a>
-            <a title="{% trans "Download the articles from this category in a mobi file" %}" href="./?mobi&amp;method=category&amp;value={{ view }}">{% trans "Download as Mobi" %}</a>
-            <a title="{% trans "Download the articles from this category in a pdf file" %}" href="./?pdf&amp;method=category&amp;value={{ view }}">{% trans "Download as PDF" %}</a>
+            {% if constant('EPUB') == 1 %}<a title="{% trans "Download the articles from this category in an epub" %}" href="./?epub&amp;method=category&amp;value={{ view }}">{% trans "Download as ePub3" %}</a>{% endif %}
+            {% if constant('MOBI') == 1 %}<a title="{% trans "Download the articles from this category in a mobi file" %}" href="./?mobi&amp;method=category&amp;value={{ view }}">{% trans "Download as Mobi" %}</a>{% endif %}
+            {% if constant('PDF') == 1 %}<a title="{% trans "Download the articles from this category in a pdf file" %}" href="./?pdf&amp;method=category&amp;value={{ view }}">{% trans "Download as PDF" %}</a>{% endif %}
             {% endif %}
             
             {% endif %}
diff --git a/themes/default/view.twig b/themes/default/view.twig
index 181e12843..8f3a26c3d 100755
--- a/themes/default/view.twig
+++ b/themes/default/view.twig
@@ -18,7 +18,9 @@
                 {% if constant('FLATTR') == 1 %}{% if flattr.status == constant('FLATTRABLE') %}<li><a href="http://flattr.com/submit/auto?url={{ entry.url }}" class="tool flattr" target="_blank" title="{% trans "flattr" %}"><span>{% trans "flattr" %}</span></a></li>{% elseif flattr.status == constant('FLATTRED') %}<li><a href="{{ flattr.flattrItemURL }}" class="tool flattr" target="_blank" title="{% trans "flattr" %}"><span>{% trans "flattr" %}</span>{{ flattr.numFlattrs }}</a></li>{% endif %}{% endif %}
                 {% if constant('CARROT') == 1 %}<li><a href="https://secure.carrot.org/GiveAndGetBack.do?url={{ entry.url|url_encode }}&title={{ entry.title|url_encode }}" class="tool carrot icon" target="_blank" title="{% trans "carrot" %}"><span>{% trans "carrot" %}</span></a></li>{% endif %}
                 {% if constant('SHOW_PRINTLINK') == 1 %}<li><a title="{% trans "Print" %}" class="tool print" href="javascript: window.print();"><span>{% trans "Print" %}</span></a></li>{% endif %}
-                <li><a href="./?epub&amp;method=id&amp;value={{ entry.id|e }}" title="Generate epub file">EPUB</a></li>
+                {% if constant('EPUB') == 1 %}<li><a href="./?epub&amp;method=id&amp;value={{ entry.id|e }}" title="Generate ePub file">EPUB</a></li>{% endif %}
+                {% if constant('MOBI') == 1 %}<li><a href="./?mobi&amp;method=id&amp;value={{ entry.id|e }}" title="Generate Mobi file">MOBI</a></li>{% endif %}
+                {% if constant('PDF') == 1 %}<li><a href="./?pdf&amp;method=id&amp;value={{ entry.id|e }}" title="Generate PDF file">PDF</a></li>{% endif %}
                 <li><a href="mailto:hello@wallabag.org?subject=Wrong%20display%20in%20wallabag&amp;body={{ entry.url|url_encode }}" title="{% trans "Does this article appear wrong?" %}" class="tool bad-display"><span>{% trans "Does this article appear wrong?" %}</span></a></li>
                 {% if constant('SHOW_READPERCENT') == 1 %}<li><div id="readLeftPercent">0%</div></li>{% endif %}
             </ul>