I have a PDF file with existing text annotations that show in Arial 12 and black color.
However, when viewed in PDFTron Webviewer they show in 'Red' and it is truncating some text like the font is not being respected either.
XFDF file shows:
<freetext style="solid" width="0" creationdate="D:20160303191349Z00'00'" flags="print,readonly,locked" date="D:20160303191349Z00'00'" page="0" rect="390.880000,774.500000,483.130000,788.000000" rotation="360">
<defaultappearance>/Arial 12 Tf 0 0 0 rg </defaultappearance>
<contents>Rice County, MN</contents>
</freetext>
the defaultappearence node shows Arial 12 text font and 0 0 0 for rgb.