PDF with hundreds of images, how to avoid loading all images concurrently

[nicodemuz]

We have a PDF that loads hundreds of images over HTTPS. These images seem to be loaded all at once. Is there a way to batch load the images to avoid sending too many concurrent requests to the web server?

[MisterDuval]

with a bit of JS, you could use the lazy loading technique (not on scroll, but on a timer based?)