Yup, it's the PHOTOPLOT OUTLINE. Used to run into that all the time. You need to put the photoplot outline around the 'whole' area you want it to output in negative image. Or else it will only output from the board outline in.Originally posted in cdnusers.org by cadpro2k
Be aware though. If you have the fabrication or assembly drawings inside Allegro, and the format are large, be aware when you output those. What I normally do is: 1) save the design; 2) delete the PH OUTLINE; 3) output the fab/assembly drawing; 4) exit or re-open the saved database. That way you'll get the whole drawing, and not just what's inside the PH OUTLINE.