diff --git a/boards/forms.py b/boards/forms.py
--- a/boards/forms.py
+++ b/boards/forms.py
@@ -187,7 +187,7 @@ class PostForm(NeboardForm):
 
     def _update_file_extension(self, file):
         if file:
-            mimetype = get_file_mimetype(file)
+            mimetype =get_file_mimetype(file)
             extension = MIMETYPE_EXTENSIONS.get(mimetype)
             if extension:
                 filename = file.name.split(FILE_EXTENSION_DELIMITER, 1)[0]
@@ -292,19 +292,23 @@ class PostForm(NeboardForm):
 
         return cleaned_data
 
-    def get_file(self):
+    def get_files(self):
         """
         Gets file from form or URL.
         """
 
         file = self.cleaned_data['file']
         if isinstance(file, UploadedFile):
-            return file
+            return [file]
+        else:
+            return []
 
-    def get_file_url(self):
+    def get_file_urls(self):
         file = self.cleaned_data['file']
         if type(file) == str:
-            return file
+            return [file]
+        else:
+            return []
 
     def get_tripcode(self):
         title = self.cleaned_data['title']
@@ -333,8 +337,8 @@ class PostForm(NeboardForm):
 
     def _clean_text_file(self):
         text = self.cleaned_data.get('text')
-        file = self.get_file()
-        file_url = self.get_file_url()
+        file = self.get_files()
+        file_url = self.get_file_urls()
         images = self.get_images()
 
         if (not text) and (not file) and (not file_url) and len(images) == 0:
diff --git a/boards/models/post/manager.py b/boards/models/post/manager.py
--- a/boards/models/post/manager.py
+++ b/boards/models/post/manager.py
@@ -26,10 +26,10 @@ post_import_deps = Signal()
 
 class PostManager(models.Manager):
     @transaction.atomic
-    def create_post(self, title: str, text: str, file=None, thread=None,
+    def create_post(self, title: str, text: str, files=[], thread=None,
                     ip=NO_IP, tags: list=None,
                     tripcode='', monochrome=False, images=[],
-                    file_url=None):
+                    file_urls=[]):
         """
         Creates new post
         """
@@ -73,11 +73,11 @@ class PostManager(models.Manager):
         logger.info('Created post [{}] with text [{}] by {}'.format(post,
             post.get_text(),post.poster_ip))
 
-        if file:
+        for file in files:
             self._add_file_to_post(file, post)
         for image in images:
             post.attachments.add(image)
-        if file_url:
+        for file_url in file_urls:
             post.attachments.add(Attachment.objects.create_from_url(file_url))
 
         post.set_global_id()
diff --git a/boards/views/all_threads.py b/boards/views/all_threads.py
--- a/boards/views/all_threads.py
+++ b/boards/views/all_threads.py
@@ -142,8 +142,8 @@ class AllThreadsView(PostMixin, FileUplo
 
         title = form.get_title()
         text = data[FORM_TEXT]
-        file = form.get_file()
-        file_url = form.get_file_url()
+        files = form.get_files()
+        file_urls = form.get_file_urls()
         images = form.get_images()
 
         text = self._remove_invalid_links(text)
@@ -151,11 +151,11 @@ class AllThreadsView(PostMixin, FileUplo
         tags = data[FORM_TAGS]
         monochrome = form.is_monochrome()
 
-        post = Post.objects.create_post(title=title, text=text, file=file,
+        post = Post.objects.create_post(title=title, text=text, files=files,
                                         ip=ip, tags=tags,
                                         tripcode=form.get_tripcode(),
                                         monochrome=monochrome, images=images,
-                                        file_url = file_url)
+                                        file_urls = file_urls)
 
         # This is required to update the threads to which posts we have replied
         # when creating this one
diff --git a/boards/views/thread/thread.py b/boards/views/thread/thread.py
--- a/boards/views/thread/thread.py
+++ b/boards/views/thread/thread.py
@@ -127,18 +127,18 @@ class ThreadView(BaseBoardView, PostMixi
 
         title = form.get_title()
         text = data[FORM_TEXT]
-        file = form.get_file()
-        file_url = form.get_file_url()
+        files = form.get_files()
+        file_urls = form.get_file_urls()
         images = form.get_images()
 
         text = self._remove_invalid_links(text)
 
         post_thread = opening_post.get_thread()
 
-        post = Post.objects.create_post(title=title, text=text, file=file,
+        post = Post.objects.create_post(title=title, text=text, files=files,
                                         thread=post_thread, ip=ip,
                                         tripcode=form.get_tripcode(),
-                                        images=images, file_url=file_url)
+                                        images=images, file_urls=file_urls)
         post.notify_clients()
 
         if form.is_subscribe():