Forum: Inkscape opacity issue going to print

7acfdc4af8a55bed6e5259d9e1a82cbe?d=identicon&s=25 John Battle (Guest)
on 2013-12-27 04:01
(Received via mailing list)
I'm fairly new to graphics and Inkscape, so please be patient with my
ignorance. I created a brochure with text on one layer over a .pdf of a
photo at 300 dpi on another layer. I set the opacity of the photo at 15%
and exported the file to .pdf and sent it to my print shop. On screen
both on my Mac in Inkscape or Preview and on their Windows machines with
Photoshop the photo in the background was clearly visible. When they
print it with a color inkjet printer it looks good too. Any darker made
the text too hard to read. When they printed it on their high volume
printer you could not see the photo at all, however. They looked at it
closer and told me the darkest area of the photo was 8%.

Can anyone explain this and more importantly can anyone tell me how to
adjust the opacity to make it come out 15-20% in the final file. This is
a fairly large run, so trial and error doesn't work. I don't know
whether to guess that the opacity is 7% low and make it 22%, or is it
only half of what it should be and make it 30%.

The problem is that Inscape and .svg are not formats they typically work
with, so not providing the file from AI or PS pretty much puts me in the
position of having to prove it's not my fault and/or figure out how to
fix it.
7acfdc4af8a55bed6e5259d9e1a82cbe?d=identicon&s=25 John Battle (Guest)
on 2013-12-27 04:16
(Received via mailing list)
I'm fairly new to graphics and Inkscape, so please be patient with my
ignorance. I created a brochure with text on one layer
over a .pdf of a photo at 300 dpi on another layer. I set the opacity of
the photo at 15% and exported the file to .pdf and sent
it to my print shop. On screen both on my Mac in Inkscape or Preview and
on their Windows machines with Photoshop the
photo in the background was clearly visible. When they print it with a
color inkjet printer it looks good too. Any darker made
the text too hard to read. When they printed it on their high volume
printer you could not see the photo at all, however. They
looked at it closer and told me the darkest area of the photo was 8%.

Can anyone explain this and more importantly can anyone tell me how to
adjust the opacity to make it come out 15-20% in
the final file. This is a fairly large run, so trial and error doesn't
work. I don't know whether to guess that the opacity is 7% low
and make it 22%, or is it only half of what it should be and make it
30%.

The problem is that Inscape and .svg are not formats they typically work
with, so not providing the file from AI or PS pretty
much puts me in the position of having to prove it's not my fault and/or
figure out how to fix it.
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