Issue Summary

If an image is marked in a nested list within a Panel macro, an export of the page to PDF will either take a long time to complete (eg 15-20') or fail to complete.

Steps to Reproduce

1. Create a page with a Panel macro.
2. Within the macro, add an image.
3. Export the page to PDF.

  When modifying this setting from the UI, Confluence will set the image's width property which would look like this in the storage format:

<ac:image ac:width="370"><ri:attachment ri:filename="my-test.png" /></ac:image>

This issue is also caused when an image's height property is greater than 370 (for example 375).  In this case, the image tag would look like this:

<ac:image ac:height="375"><ri:attachment ri:filename="my-test.png" /></ac:image>

Expected Results

The page quickly exports without any issues.

Actual Results

The export takes 15-20' to complete or doesn't complete.

Workaround

1. Edit the page.
2. Click on the image and edit the pixel property to 365 or less.

Alternatively, use a Storage Format editor to update the image's width and/or height property to values less than or equal to 365/370 respectively.