Chaps help please.
I have an A4 page setup perfectly in paperspace on A4 297x210 default pagesize. I have ameded the default margin widths all so they are set to zero to by border will fit.
It looks perfect in paperspace i.e. fits all sides and also print previews perfectly however when plotted it offsets to the left and misses off about 30mm of the page, funny thing is its like its picking up the tilte page and moving it off the page.
 
I am printing dwg to pdf - using scale page to fit - plottting extents (however picking a window or layout etc doesnt help either.
 
Anyone with any ideas? it is really doing my head in.

I would set it to "Layout" and maybe look at adjusting the X/Y plot offsets.

Hello, if I understand your needs :
You want to have your A4 paper at a right scale 1/1 for example and not 1/9.53288....
The problem is that your printer has margins and this afects the ploting.
The solution is to create a A4 form with that same margins ( a rectangle lightly smaler than the 297x210 inside and you would print the little one squizing the margins to zero.
I have created this with the margins of my plotter ( every A3/A4 plotter has his own margins ).
You can create your own form with your plotter margins with a test :
Launch a plot of a 297x210 form on your plotter with the setting : scale of the plot : fit to paper and read the personalised scale obtained : 1 mm = 1.049 unites ( sorry this is a crude translation from my "french AutoCAD release" ).
Then you create two rectangles :
1 = 297x210
2 = 297/1.049 x 210/1.049 = 283.126... x 200.19066...
You can obtain the second by a scale 1/1.049 of the 1st.
I can upload my "A3LAZER" AND "A4LAZER" forms on request.
Warnning : when you print a PDF you will get ~2% margins more.

ive tried that but it just then chops off the other side it almost like its not using the full printable area

Hello N°2, try the expensive method of inserting the all DWG ( at 0,0,0 ) in a "proto" or DWT or your own that works, then copy/paste the all paper space + re-activate the ports ( or use the AutoCAD design Center # CTRL+2  ) and/or reset the print options.
May be you have got "settings" that you don't know, that you have forgoten or that are not setable ( comming from an downgraded release # 2011 "saved as" 2007 for example ).
I have already experienced problems with for example multi-lines and not simple line texts of R14 release making fatal errors when "saved as" R13 release.