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'[PICLIST] [ADMIN]:Posting schematics'
2001\05\06@114249 by rottosen

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James Newton, et. al.:

What is the preferred method of posting a schematic? Is a PDF attachment
proper? What maximum size is acceptable?

I have a schematic that is a 56K PDF.

(I can never get a small PDF from an image scan. Maybe this should be
the subject of another question?)


-- Rich

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2001\05\07@185338 by Peter L. Peres

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imho a 56K pdf is a small pdf but it helps if you draw the schematic in
b&w in the computer. You can also do some tricks with the scanned image to
make it b/w (despeckle, noise reduce, kerning, maybe Smith filter). All
this reduces data size. It depends on what graphical tools you have. I've
made some experiments with JPG (!) and it is not so bad. Just don't crank
the compression level up very high.

Peter

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2001\05\07@220851 by Herbert Graf

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> imho a 56K pdf is a small pdf but it helps if you draw the schematic in
> b&w in the computer. You can also do some tricks with the scanned image to
> make it b/w (despeckle, noise reduce, kerning, maybe Smith filter). All
> this reduces data size. It depends on what graphical tools you have. I've
> made some experiments with JPG (!) and it is not so bad. Just don't crank
> the compression level up very high.

       Actually for line art (which is what most schematics are) the best standard
by far is gif, I have seen images that were around 50k in jpg format reach
5k in gif format, and the gif looks better! However, this only works well
when the amount of colours in the image is below 256, above that jpg gets
better. TTYL

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