Invisible but printable line
When printing the pdf file (in Linux), I found a line inside the rectangle.
Invisible_but_printable_line.pdf
Although when viewing a pdf file, nothing is visible inside the rectangle!
It seems to me that this is an Evince program error.
I think so because when you open and print this pdf file in Adobe Reader XI (in Windows), nothing is printed inside the rectangle!
I created a pdf file from an svg file.