Plotting a PDF with color and grey level

Question

Hello, 
 I was wondering how to make changes clearer on a PDF print. 
 Say I do all my revisions on a dedicated revisions level, say level 99, and it is a hot pink color. 
 Then print the drawing. 
 a color plot would be created. 
 Then I would like microstation to plot a second duplicate in greyscale, excluding the revisions on level 99 and place that 'on top of' the original PDF. 
 Preferably this grey layer would default as ' hidden' or 'not shown' by default... 
 such that when someone is opening the PDF they will see the full color drawing, and if they are curious about what changed, they can turn on the grey layer to see the hot pink highlighted? 
 When the drawing is revised next time the drafter would take the revision elements off level 99 and place them on appropriate levels. 
 
 is that possible thru print scripting? 
 or do i need to reference the design file onto itself and make the reference print in grey and exclude that level? 
 
 is there a better way to do that? 
 
 thanks!!

Lorys · Answer

ok Peter this should have gone to printing forum... 
 First thing what you ask I don't think can be done the way you described easily .. But you would need to create a second image ( pdf) reattach it to your drawing as raster on say levelname grey then make a new layered pdf then you could toggle the layers on off but the default would be the raster image ie the grey on top... this unfortunately it makes you current drawing look wrong and you would need to remove the older raster after printing, IMHO this seems like a troublesome work flow... 
 What we do at my work is print to pdf the BEFORE case, or from saved in superseded folder or dated as part of name, then print to pdf the after changes case both cases have the same size sheets same driver, then open both with Acrobat reader at the same time and toggle between before and after with Control shift tab this works extremely well for me and my overlords and is really simple .. It follows the KISS principle Keep It Simple Son...

Lorys · Answer

as I said prior just print to pdf and make sure it has the old rev in name ie Rev5 and save in superseded, 
 Then print when edits are finished as Rev 6 now you have two options 
 Leave them as they are where they are and teach people how to load 2 pdfs and toggle between in Acrobat via the sht control tab keys 
 or combine both pdfs into on multipage pdf with a pdf binder tool like Bluebeam review or full version adobe acrobat there also are freeware pdf binders..try google 
 once its a2page multipage toggle forward and back with same view size via page up page down and changes should be very obvious no need for colour overrides...and as you used a titleblock the Rev should be obvious too... you can only hold peoples hand so far this method is also good for QA as your old drg pdf has been consigned to superseded... 
 if your not using projectwise a good tip on a big project is to use bentley utility package to zip up all the drgs and refs between revs so you can always bring something back.. masters often change their minds and want to revert back to the last or previous rev especially in optioneering stages.. youre QA control person will love you for this alone...