If you want it to do it in the Print Preview, without messing about with
Gerbers, do the following:

1). On an unused mechanical layer, create a fill that covers the entire PCB
design.
2). Create a Print preview, as per normal.
3). Choose Full Colour for your print.
4). In the preferences click the colours tab and make the Top / Bottom
Layers and Multilayers WHITE.
5). Make the via and pad holes BLACK
6). Make the Mechanical Fill BLACK
7). Do your prints with the mechanical fill at the bottom, and move the
orders of the layers as suits you. I used to go (From the top): Multilayer,
Top/Bottom Copper, Mechanical fill.

Unfortunately, there is no 'simple' way to do this, but my way works.

Good luck!

TC


-----Original Message-----
From: Joe Sapienza [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, 28 September 2004 10:30 AM
To: Protel EDA Forum
Subject: Re: [PEDA] Negative Film Output

when you setup to output the gerbers the option to invert the outputs is 
there just check the box






----- Original Message ----- 
From: "Jeff Stout" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, September 27, 2004 3:11 PM
Subject: [PEDA] Negative Film Output


> How do I create "negative" film output?  And why can't Protel do this 
> right
> out of the box?  I want to use a home PCB kit to create a simple PCB and I
> need negative film.
>
> I once heard of a method of printing to pdf then hand editing the output 
> to
> create that effect. But nothing clicked for me when I looked at the pdf
> output a few minutes ago.
>
> Any help appreciated.
>
> Jeff Stout
>
>
>
>
>
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