new 'convert_pasted_images_quality' site setting

app/controllers/uploads_controller.rb

@@ -73,7 +73,7 @@ class UploadsController < ApplicationController
       # convert pasted images to HQ jpegs
       if filename == "blob.png" && SiteSetting.convert_pasted_images_to_hq_jpg
         jpeg_path = "#{File.dirname(tempfile.path)}/blob.jpg"
-        `convert #{tempfile.path} -quality 95 #{jpeg_path}`
+        `convert #{tempfile.path} -quality #{SiteSetting.convert_pasted_images_quality} #{jpeg_path}`
         # only change the format of the image when JPG is at least 5% smaller
         if File.size(jpeg_path) < File.size(tempfile.path) * 0.95
           filename = "blob.jpg"

config/locales/server.en.yml

@@ -1070,6 +1070,7 @@ en:
     allow_all_attachments_for_group_messages: "Allow all email attachments for group messages."
 
     convert_pasted_images_to_hq_jpg: "Convert pasted images to high-quality JPG files."
+    convert_pasted_images_quality: "Quality of the converted JPG file (1 is lowest quality, 100 is best quality)."
 
     enable_flash_video_onebox: "Enable embedding of swf and flv (Adobe Flash) links in oneboxes. WARNING: may introduce security risks."
 

config/site_settings.yml

@@ -718,6 +718,10 @@ files:
   default_opengraph_image_url: ''
   allow_all_attachments_for_group_messages: false
   convert_pasted_images_to_hq_jpg: true
+  convert_pasted_images_quality:
+    default: 95
+    min: 1
+    max: 100
 
 trust:
   default_trust_level: