--- a/odfcast/convert.py	Mon Sep 29 14:18:11 2014 +0200
+++ b/odfcast/convert.py	Mon Sep 29 15:59:36 2014 +0200
@@ -7,14 +7,19 @@
 
 from py3o.template import Template
 
+from PyPDF2 import PdfFileMerger
+
+
 ALLOWED_FORMATS = ["pdf", "doc", "docx", "odt"]
 
+PDF_MIMETYPE = "application/pdf"
+
 MIMETYPES = {
     "odt": "application/vnd.oasis.opendocument.text",
     "doc": "application/msword",
     "docx": "application/vnd.openxmlformats-officedocument"
     ".wordprocessingml.document",
-    "pdf": "application/pdf",
+    "pdf": PDF_MIMETYPE,
 }
 
 DEFAULT_MIMETYPE = "application/octet-stream"
@@ -92,3 +97,23 @@
 
     def get(self):
         return render_template("template_convert.html")
+
+
+class MergeView(MethodView):
+
+    def get(self):
+        return render_template("merge.html")
+
+    def post(self):
+        merger = PdfFileMerger()
+        ffiles = request.files.getlist('files')
+
+        for ffile in ffiles:
+            merger.append(ffile)
+
+        outfile = tempfile.NamedTemporaryFile()
+
+        merger.write(outfile.name)
+
+        merger.close()
+        return Response(outfile, mimetype=PDF_MIMETYPE)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/templates/merge.html	Mon Sep 29 15:59:36 2014 +0200
@@ -0,0 +1,13 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<h1>Merge</h1>
+
+<form role="form" action="" method="POST" enctype="multipart/form-data">
+    <div class="form-group">
+        <label for="files">Files</label>
+        <input id="files" type="file" name="files" multiple>
+    </div>
+    <button class="btn btn-default" type="submit">Convert</button>
+</form>
+{% endblock %}