JPEGcrypto safeguards JPEG images on your web site from ‘copyright violation’. This plugin is discontinued.


Basic features
* No effect to seo indexing by search engines
* Compatible with both pc & mobile with all major browsers
* Stability by client-side-processing & clean uninstall-ability
* Disabled saving an image by long-press (Mobile)
* Disabled saving an image by both right-click & drag-n-drop (PC)
* Guarded images remain link-able (PC, Mobile)
* Text selectable & copi-able for viewer convenience (PC, Mobile)
* Screenshot jamming by watching keys & window status (PC)
* WooCommerce product images guarded (PC, Mobile)
* Automatic guard deactivation for admin login (PC, Mobile)
* Protects ‘Lightboxed’ images too (PC, Mobile)

*** Lightbox ***
JPEGcrypto’s advanced feature works fine with major Lightbox scripts.

  • Works best with: WP jQuery Lightbox, Responsive Lightbox & Gallery
  • Works with: SwipeBox, prettyPhoto, FancyBox, Image Lightbox, Magnific Popup
  • Doesn’t work with: Nivo Lightbox, TosRUs, Featherlight

FAQ and Support

We do not offer update and support for this plugin due to its discontinue.


  1. Install using WordPress installer, or upload whole of this plugin folder to /wp-content/plugins folder.
  2. Go admin panel. Find ‘JPEGcrypto’ just below ‘Media’ in the left menu.
  3. 有効化する(これを忘れないように)
  4. Please note that media guard is deactivated automatically when you are logged-in as an site administrator, so please log-out once to see JPEGcrypto is working decintly with your site.


I have been looking for a good solution to block downloading images on my site by visitors who can look into page html. Though all developers I met said that 'being displayed means being downloadable', this plugin solved in an unique way with encryption and token. I'd say that another advantage of this plugin is its simplicity. I didn't have to install any application to my host that might make it unstable. Better if I can customize watermark drawn on my images. I'm a satisfied user.


JPEGcrypto はオープンソースソフトウェアです。以下の人々がこのプラグインに貢献しています。


“JPEGcrypto” は2ロケールに翻訳されています。 翻訳者のみなさん、翻訳へのご協力ありがとうございます。

“JPEGcrypto” をあなたの言語に翻訳しましょう。

開発に興味がありますか ?

コードを閲覧するか、SVN リポジトリをチェックするか、開発ログRSS で購読してみてください。



  • last update due to discontinue


  • version alignment


  • Minor code update for preventing translation file from being copied to WP system folder unproperly


  • Updated to work fine with major Lightbox scripts
  • Performance of server-side scripts improved
  • Error handling in encryption process improved


  • Has been complied to WordPress 5.1 Betty
  • Image encryptipn tool has been integrated with WordPress editor and Media Gallery
  • Insertion of ‘protect_image’ is not mandetory any more
  • Attributes of encrypted images are displayed
  • Added another tool for easy snippet share
  • Allocated independent Mime-Type to encrypted image in WordPress
  • Security optimization


  • Has been complied to WordPress 5.0
  • Multilingual UI (English & Japanese)
  • Removed limitation with ‘expiration date’ in encrypting images (used to be 1 year at longest)
  • JPEGcrypto account ID expressly displayed in encryption tool


  • Service name change from ‘Eclips Media Guard’ to ‘JPEGcrypto’
  • API URL change


  • Professional features has been refined


  • 日本語訳を追加しました


  • 設定画面をシンプルにしました
  • 管理者ログイン時のガード自動無効化を選択式にしました
  • スクリーンショット妨害の有効化を選択式にしました
  • スクリーンショット妨害のスピードを速くしました


  • WooCommerce の製品画像の保護を追加しました


  • Enhanced fundamental functions, Added advanced features, Optimized UIs


  • First release version