Install Inkscape, load your original jpg into inkscape.

Select the image by clicking once on it and then go to Path -> Trace Bitmap.

You can then play with the settings clicking "update" in between changes 
to get a rough idea of what you will get.

If your image has a ton of colors in it or needs color gradients you 
should edit your image in GIMP to get it down to the fewest number of 
colors possible, and the colors used in anti-aliasing can matter to the 
final product as well.

Brian Cluff

On 03/15/2016 04:17 PM, Michael wrote:
> I attempted to use potrace but part of the image is gone after the
> conversion:
> https://drive.google.com/open?id=0BweRamx9lXSLZjZNQzdYZHB4djA
> What am I doing wrong?
>
> These are the commands I entered to due the conversion:
>
>   convert watermark3.jpg watermark3.ppm
>   potrace -s watermark3.ppm -o watermark3.svg
>
> I looked into the manpage and it seems that you are telling it the *.ppm
> is a SVG file but maybe you are telling it you want to convert the ppm
> to svg.... I don't know.
> --
> :-)~MIKE~(-:
>
>
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