Android Question Printing PDF table (inside blank)

hello;

I cretae table with PDFWriter lib. it is perfect.
After I want to print it.

I installed Samsung Print plug in.

Open PDF file with "Google pdf viewr" and Print it.

Result All page has not words. its writo only table lines.

I checked many times PDF file.
ı tetsted on PC. its perfect print result.

Where is problem?

• Printing plugin (I cheked two different phones, samsung print plugin)
• Creating PDF file problems?

This is screenshot on Google PDF app


This is PrintPriview. (Print result is same on real paper, word are missing !!! )