(I know, it's 2019, why is anyone still using IE? Because we still use the Acrobat PDF plugin.)
I have a web application which (among many other things) uses the Acrobat plugin to display a PDF file inside a popup window (to be digitally signed).
We have an issue where the first time someone accesses the PDF-to-be-signed, all that is displayed is the Adobe Grey Screen of Death. If we close the popup and redisplay, the PDF displays.
I've tried the following steps to fix the issues:
- Checking "Display Large Images" in Acrobat
Modifying response headers to the following:
Cache-Control: no-cache, no-store, must-revalidate, post-check=0, pre-check=0 (removing no-cache does not help)
Pragma: private
Expires: 0
I've also tried to activate error logging in Acrobat under Action Wizard, but nothing is generated.
Eventually, someone will rewrite this to work in a modern browser (which can't be done now), but for now, can anyone assist?