implements #10751. Allow images to be concatenated for PDF download.

3 jobs for F10751AcceptImageAsSourceToConcatenatePDF in 6 minutes and 35 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Before
passed #5713
documentation

00:01:55

 
  Build
passed #5714
snapshot

00:02:43

 
  Selenium
passed #5715
selenium

00:01:56