Handle pdf files

Closes #3529603

added 6 commits

• f6b29f43...f3c8cae9 - 4 commits from branch project:1.1.x
• 660e794b - Handle pdf files
• 1de03989 - #3529603: phpcs fix

Compare with previous version

changed target branch from 1.1.x to 1.2.x

approved this merge request

merged