PDF export does not support EXIF orientation

Issue summary

1. Since Confluence 6.2.2, images with EXIF data are displayed in Confluence accordingly.
   • CONFSERVER-32762
2. PDF export of pages containing these images do not follow the EXIF data, and they appear rotated.
3. Word and HTML exports are not affected.

Steps to replicate

1. As per the CONFSERVER-32762 case, upload an image with EXIF rotation data onto a page in Confluence.
2. The image would appear straight, or follows the orientation set in the EXIF data.
3. Export the page, or the whole Space to PDF, and in the PDF export, the images will be rotated, and does not follow the EXIF rotation data.

Workaround

1. Open the image in a photo editor, like MS Paint, and then simply save it.
2. This image can then be uploaded, and exported via PDF without any issues.