PDF Creator Problem with .tif files, Autocad

I recently been pdfing the .tif files on Autocad, and everytime I print using PDF Creator, the whole image frame is displayed and there are like 4 lines showing on the pdf which looks like it is in certain sequence. My coworkers and I have been struggling to figure out this problem. Does anyone have Any ideas as to what makes those line show on the images after its been pdf'ed?  If its any matter, I pdf'ed it in 34x44 size.



To remove the image frame:

Type imageframe in the autocad command field and then you can select on or off.

When the imageframe is set to off you can not select or delete the image.