I have a solid color background. Then a layer above that is a pattern of repeated logos. All are selected as a group. When I choose Fill and Stroke and change Opacity to less than 100% the final PDF doesn't show that layer anymore. (Even 99% does not work.)
Xpdf shows it drawn but then it is immediately replaced with the solid background.
In inkscape itself, it appears correctly.
When I change opacity back to 100% it works again. Any ideas how I can opacity be less than a 100%?
Here is an example (at 100%) http://reedmedia.net/~reed/tmp-ocy843i5y2/J1.svg
Huh! I have no trouble with 0.46 exporting as pdf on Ubuntu Hardy.
What version and platform is this on?
JF
Jeremy C. Reed wrote:
I have a solid color background. Then a layer above that is a pattern of repeated logos. All are selected as a group. When I choose Fill and Stroke and change Opacity to less than 100% the final PDF doesn't show that layer anymore. (Even 99% does not work.)
Xpdf shows it drawn but then it is immediately replaced with the solid background.
In inkscape itself, it appears correctly.
When I change opacity back to 100% it works again. Any ideas how I can opacity be less than a 100%?
Here is an example (at 100%) http://reedmedia.net/~reed/tmp-ocy843i5y2/J1.svg
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Jeremy C. Reed wrote:
I have a solid color background. Then a layer above that is a pattern of repeated logos. All are selected as a group. When I choose Fill and Stroke and change Opacity to less than 100% the final PDF doesn't show that layer anymore. (Even 99% does not work.)
Xpdf shows it drawn but then it is immediately replaced with the solid background.
In inkscape itself, it appears correctly.
When I change opacity back to 100% it works again. Any ideas how I can opacity be less than a 100%?
When opacity is less than 100% a soft mask is used in the PDF file. Soft masks are something that not all PDF viewers correctly support. The PDF files created by Inkscape with opacity less than 100% renders fine in Adobe Reader and recent versions of Evince.
Generally whenever the PDF output does not appear correct you should check it with Adobe Reader as other PDF viewers sometimes have bugs or unimplemented features. This should probably be added to the Inkscape FAQ.
On Sun, 19 Oct 2008, Adrian Johnson wrote:
When opacity is less than 100% a soft mask is used in the PDF file. Soft masks are something that not all PDF viewers correctly support. The PDF files created by Inkscape with opacity less than 100% renders fine in Adobe Reader and recent versions of Evince.
Generally whenever the PDF output does not appear correct you should check it with Adobe Reader as other PDF viewers sometimes have bugs or unimplemented features. This should probably be added to the Inkscape FAQ.
Thanks for the explanation.
In my case, the documents will be sent to a printer, so I have no control or understanding on what will render fine (except by paying for proof copies for testing).
Any workaround for this?
I haven't experimented with opacity in layers but I have sent pdfs with opacity gradients to printers without any problems. I used to convert to EPS (painful on windows) or phone the printers to try and explain how they could import svg into their software (painful and not always 100% successful) so the pdf export has made my dealings with printing companies a lot simpler! Since I started sending the exported pdfs I have not had one printer contact me with a problem - if it viewed ok in Adobe reader, the printers could use it.
Hope that helps a little,
Tony
Jeremy C. Reed wrote:
I have a solid color background. Then a layer above that is a pattern of repeated logos. All are selected as a group. When I choose Fill and Stroke and change Opacity to less than 100% the final PDF doesn't show that layer anymore. (Even 99% does not work.)
Xpdf shows it drawn but then it is immediately replaced with the solid background.
In inkscape itself, it appears correctly.
When I change opacity back to 100% it works again. Any ideas how I can opacity be less than a 100%?
participants (4)
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Adrian Johnson -
Docsonic -
Jeremy C. Reed -
Joshua Facemyer