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Tip and Trick Detail
Making the drawings file size just a little bit small - Part 1
*Applies to: AutoCAD R14, 2000, 2000i, 2002, 2004 and 2005*

E-mail what a great way of communicating with everyone, and then there is the internet.  Without the internet I wouldn't be here and you wouldn't be reading this tip the way you are.  We all send drawings from place to place, and then the e-mail admin comes in and threatens with the you not being able to get files large than 2MB or 1MB or even less.  Then reality hits, my drawing is bigger than 1MB in size.  What can I do?  The first thing that you might think of is Zipping the file... will the end user be able to open it.  Well besides Zipping the file you can use a system variable called Rasterpreview.  This system variable controls whether or not you want a preview created with the drawing file.  This is one of the key things that makes the drawings file so huge these days.  So if you can live without it I would turn it off.  This will also help when opening the file because you won't have to wait for the preview to come up.  A total of 5 - 25KB will be remove from your drawing, this can make a large impact on drawings that are part of symbol library.

0 (OFF) -  Turns saving image preview off.

1 (ON) -  Turns saving image preview on.

Command Line:
Command: rasterpreview
Enter new value for RASTERPREVIEW <1>: 0