Cannot highlight some pdfs in DT3

[chrillek]

This has been discussed many times already, One of the hits when feeding “Highlight PDF” into the forum’s search function is

Highlighting/Underlining pdf

This has been discussed many times on the forums. Some PDFs are encrypted and don’t allow editing. Some PDFs have fonts that are incompatible with Apple’s PDFKit framework available to us. Preview uses features unavailable to us in their framework. Other applications don’t use PDFKit.