Inserting PDF Macros preview of 30 PDFs or more causing Constant High CPU Usage in client PC.

Steps to replicate

1. Use a system resources monitor
2. Create a Confluence page
3. Drag and drop 30 PDFs or more (sample files - link restricted to Reporters and Developers)
4. Save page
5. Observe the constant high CPU usages

Observation

• Minimizing the browser where the page is opened lower down the CPU usage
• The high CPU usage is constant even after the PDF Macros are rendered successfully in one page and the browser is left open without any activities (no clicking macros/link, no scrolling up/down the page) from the user