• Registered: 2017-11-28
  • Posts: 2

Topic: APNG support?

I've demoed the Photoshop CC plugin and it doesn't look like Juicebox supports APNG. Also tried inputting gif and it converted the first frame into a jpeg when i wanted it to display the animation.

  • Registered: 2012-04-24
  • Posts: 5,924

Re: APNG support?

Juicebox will display animated PNGs (all images in a Juicebox gallery are displayed by regular dynamically-generated HTML <img> tags) but the processing of images whilst creating a gallery is handled by the particular program/plugin being used to build the gallery.

In the case of the Photoshop plugin, all accepted images (those with file extensions of .gif, .jpeg, .jpg or .png) will be converted into JPG files for the gallery.

If you want to include animated PNGs, then I would recommend using JuiceboxBuilder-Lite.
(1) Ensure that your files have the file extension .png (rather than .apng).
(2) Deselect the 'Resize Images' checkbox on the 'Images' tab (or ensure that your source images are within the maximum resize image dimensions) so that the source images are not resized by the application (which would also convert them into JPGs) but are just copied across to the gallery's 'images' folder.

3 Reply by pliberty (edited by pliberty 2017-12-16 06:50:27)

  • Registered: 2017-11-28
  • Posts: 2

Re: APNG support?

Is there a way to make Juicebox not preload the entire gallery? I'd rather let the user be able to load the images they want to see without having to wait to load an entire gallery where each image has a huge file size.

  • Registered: 2012-04-24
  • Posts: 5,924

Re: APNG support?

With Juicebox-Pro, you can change the way that Juicebox preloads images via the imagePreloading configuration option.

Possible values are:

  • PAGE - Preloads all images in the current thumbnail page. Unloads all images in the previous thumbnail page.

  • NEXT - Preloads image after currently viewed image. Unloads previously viewed images.

  • ALL - Preloads all images in gallery. Maximum usability. Images never unloaded. Not good for large galleries (image count > 50).

These values are noted in the Main Image section of the Config Options page.

This configuration option can be changed only in Juicebox-Pro (but not in Juicebox-Lite, the free version, where the default value of PAGE is always used).