[Boatanchors] Need software to change blueprint to blackline

[E C Moxon]

Use MS Paint to invert colors.
Then use MS Picture Manager to remove color (saturation=0) and adjust
contrast/brightness to taste.
Ed, k1ggi

-----Original Message-----
From: boatanchors-bounces at mailman.qth.net
[mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of WA5CAB at cs.com
Sent: Saturday, January 19, 2013 7:07 PM
To: boatanchors at qth.net; boatanchors at theporch.com;
milsurplus at mailman.qth.net; mrca at mailman.qth.net;
atlas_craftsman at yahoogroups.com; southbendlathe at yahoogroups.com;
atlasshaperandmillingmachineusersgroup at yahoogroups.com; tmc at mailman.qth.net
Subject: [Boatanchors] Need software to change blueprint to blackline

Groups,

I received a file from another member of several of these lists asking 
whether I could turn several blueprints in to regular black on white.  The
parts 
are specifically machinery parts to make but I also acquired recently a 
couple of radio manuals worth scanning with for some strange reason the 
schematics as blueprints.  Hence the wide distribution.

Does anyone know of any software that can turn a scanned negative or 
blueprint into a positive (black lines on white)?  If so, please tell me
what it 
is.  I actually thought I had done some of this a few years ago but when I 
went to try to find what I did it with, the cupboard was bare.  It would
also 
be nice if the application costs less than AutoCad!

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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