fix pdf generation images

lib/submissions/generate_result_attachments.rb

@@ -46,11 +46,14 @@ module Submissions
           when 'image', 'signature'
             attachment = submitter.attachments.find { |a| a.uuid == value }
 
-            io = StringIO.new(download_supported_image_data(attachment))
-
             scale = [(area['w'] * width) / attachment.metadata['width'],
                      (area['h'] * height) / attachment.metadata['height']].min
 
+            image = Vips::Image.new_from_buffer(attachment.download, '')
+            image = image.autorot.resize([scale * 4, 1].min)
+
+            io = StringIO.new(image.write_to_buffer('.png'))
+
             canvas.image(
               io,
               at: [
@@ -244,7 +247,7 @@ module Submissions
       page.box.height = attachment.metadata['height'] * scale
 
       page.canvas.image(
-        StringIO.new(download_supported_image_data(attachment)),
+        StringIO.new(attachment.preview_images.first.download),
         at: [0, 0],
         width: page.box.width,
         height: page.box.height
@@ -253,15 +256,6 @@ module Submissions
       pdf
     end
 
-    def download_supported_image_data(attachment)
-      if SUPPORTED_IMAGE_TYPES.include?(attachment.content_type)
-        attachment.download
-      else
-        Vips::Image.new_from_buffer(attachment.download, '')
-                   .write_to_buffer('.png')
-      end
-    end
-
     def h
       Rails.application.routes.url_helpers
     end

lib/templates/process_document.rb

@@ -28,7 +28,7 @@ module Templates
       ActiveStorage::Attachment.where(name: ATTACHMENT_NAME, record: attachment).destroy_all
 
       image = Vips::Image.new_from_buffer(binary, '')
-      image = image.resize(MAX_WIDTH / image.width.to_f)
+      image = image.autorot.resize(MAX_WIDTH / image.width.to_f)
 
       io = StringIO.new(image.write_to_buffer(FORMAT, Q: Q, interlace: true))