From what I can see here, these comments all have a fill color of "none" and a "0pt" line width, as such it is fully intended that they are not visible in the Editor, (Adobe and foxit both show the same issue). As these comment items are "read only" and cannot be modified, you will want to recreate this document ensuring that the lines have a border width value.
I also see that this was created using an older version of our software (7.0.328.0) can you please update our software and try using the latest version of our software to re-create this document. (8.0.336.0) is available here: https://www.tracker-software.com/product/downloads
Daniel McIntyre Support Technician
Tracker Software Products (Canada) LTD
Sales: +1 (250) 324-1621
Fax: +1 (250) 324-1623
This was one pdf converted from AutoCAD file
You say "recreate" is meaning to reprint pdf file from .dwg file?
but .dwg file can't found at all
I have been accustomed to view pdf file with pdf x-change viewer instead of pdf x-change editor
but it don't looks comfortable with so many reactangles in pdf x-change viewer
so would there be any convenient method to hide the reactangles in pdf x-change viewer?