https://stackanswers.net/questions/imageresource-in-clientbundle-as-real-img-element
Describes the cause and action for error messages.
Error Message(English)：
does not print background
TreeGrid - Printing
http://www.treegrid.com/doc/Print.htm
PDF Creator Plus FAQs - Produce Adobe PDF files from Windows app
https://www.peernet.com/conversion-software/create-pdf/faqs/
Pages - Knowledge base articles - wiki.esko.com
https://wiki.esko.com/collector/pages.action?key=KBA
attributes - Labelled content - wiki.esko.com
https://wiki.esko.com/label/KBA/attributes
PSAF | Microsoft Windows | Transformer - Scribd
https://www.scribd.com/document/226752225/PSAF
ImageResource in ClientBundle as real element - StackAnswers
https://stackanswers.net/questions/imageresource-in-clientbundle-as-real-img-element