This is worth repeating- please use browser-friendly JPG, GIF, or PNG
for uploading bitmapped pictures, schematics, etc. Formats like TIF
and BMP result in really huge file sizes for the same image size, and
cannot be viewed directly in the browser (not without a plug-in, anyway).
Stefan gives an excellent link to help with this.
--- In
Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> http://www.irfanview.com/
> is freeware (non commercial use).
>
> in "save as" choose jpg and if you want to change the compression
there is
> the options button.
>
> jpg is good for photos (with many colors and irregular shapes)
>
> gif is good for line-art (like black/white pcb layout)
>
> this is due to the compression algorithms.
>
> don't use jpg for line art and don't use gif for photos - try it,
you will
> see why.
>
>
> irfanview is also cool for scanning. there is crop selection and
also stuff
> like resize/resample.
> It's just not made for drawing so you won't find a paintbrush in there.
> (and it's a very good image viewer which knows any image format you can
> imagine)
>
>
> Stefan