chnage existing A3 title block to A1 size and page setup to A1

[Anonymous]

Dear All,

In the project I am working on, there is a customer requirement (in the contract) to use only an A1 size title block for all the AutoCAD layouts, but somehow this requirement was missed out and all the layouts are prepared to A3 size. I need your help to automate or provide any existing lisp which will replace the existing A3 title block and page setup to A1 title block and page set up.

Thanks in Advance

Vivek Pola.

[Sea-Haven]

We always used a A1 title and just plotted at 1=2 plot scale which makes a A3, can you do the opposite 2=1 not sure if it will work. 

[Kent1Cooper]

[A silly suggestion, but....  Put four A3 sheets into one A1 sheet size?  Then you don't need to deal with the scales, etc.]

[Anonymous]

We did the same before as suggested by you, but the client needs all the drawings on the A1 size title block.

[Sea-Haven]

So its a different title block not a scaled down version ? Could you just replace the title block but scale it which is A1 to A3 ratio. Then plot 2=1 or rescale to A1 will need to reset the viewport scales.