FAQ

Purchase and Licenses

Please also see the FAQ section under Pricing.

Can I purchase a license for a longer period?

It is possible to purchase a license for 3 years or more. The details depend on the specifics of your projects and are discussed individually. Please reach out if you are interested.

Can I pay via wire transfer?

If you intend to purchase a Small Agency license or an individual package in Euros, we can generate an invoice for you to pay via wire transfer to our bank account.

Please reach out if you are interested in this.

Can I purchase without a subscription?

Yes, this can be arranged if you purchase a larger license and pay upfront, as described above. You can also cancel a subscription right after your purchase. The license is still valid until the end of the paid period.

General

How much data does ISC store?

Image Source Control is designed to be efficient, even on websites with large media libraries and extensive content.

Image source information and indexes are stored in post meta fields. The latter are serialized arrays. Their size is generally small compared to the metadata WordPress core stores for posts and images.

The isc_index table used by the Unused Images module stores each instance where an image is used within your content. Even for sites with thousands of image usages, this table hardly reaches one megabyte (MB).

ISC utilizes database indexing for relevant fields and caching mechanisms to ensure good performance to minimize database load. If you have specific concerns about performance on your site, you can use plugins like Query Monitor to identify any slow database queries and inform us about them.

Which image files are detected?

Image Source Control detects any image files embedded in your website’s HTML. This includes image paths in <style> and <script> blocks.

While certain features also work for files without an extension and other media files (see below), the following are the image file extensions that work without limitations:

  • JPEG
  • JPG
  • PNG
  • WEBP
  • GIF
  • PNG

The following image paths might not be detected:

  • Background images loaded in CSS files. However, Elementor background images are detected due to a special implementation.
  • Image URLs without a file extension if they are not within a src attributes. This is extremely rare.
  • Encoded image URLs. E.g., when a lazy load plugin encodes image URLs to prevent them from loading until a certain event. A solution has to be checked individually. At the moment, I don’t know any unresolved cases.

Are other media files supported? (PDFs)

You can choose in the plugin settings whether the features in Image Source Control should work with only images or with all files in the media library.

There are only a few exceptions based on the media type:

  • Captions with the image source in the frontend only show on images.
  • The Global List also lists PDF files if you choose ”All images” in the settings. However, it won’t list associated posts.

Image Sources

Can I use overlays on background images?

Yes, that is possible. See Displaying Image Captions for Background Images for more information.

Due to the complexity and variety of implementations of background images, you might want to consult your web developer with testing and adjustments. Our Small Agency clients can reach out through support to get help.

Image Source Control supports background images in Elementor without known limitations.

Can I use an overlay with Sliders?

We have seen most sliders break when the overlay HTML is injected. This is why we recommend using the Per-page list to display image sources for pages with sliders.

Developers can try the options listed under Displaying Image Captions for Background Images to place the image source themselves. Please let us know if you find a solution for a certain slider that we can recommend to others.

Customization

See Customizations for customizing the behavior of Image Source Control and the layout of image sources.