Ink 0.48.1 gradients and PDF
Hi, Noticed today that if you have gradients that go to alpha 0% then they do not show up in a (save copy) PDF.
I have fairly old software, so perhaps my gnome PDF thing is out of date, but when I made the gradients go to white + alpha 100% (i.e. opaque) then the gradients worked in the PDF.
Any word on the rules in this regard?
\d
On 2011-04-15 9:47, donn wrote:
Hi, Noticed today that if you have gradients that go to alpha 0% then they do not show up in a (save copy) PDF.
I have fairly old software, so perhaps my gnome PDF thing is out of date, but when I made the gradients go to white + alpha 100% (i.e. opaque) then the gradients worked in the PDF.
Any word on the rules in this regard?
It has been my experience that pdf support isn't always that great in non-Adobe products, so I would recommend trying adobe reader to see where the problem lies (if adobe reader doesn't display it something probably went wrong when exporting, if it does show it, chances are your pdf viewer just doesn't support it). In general, if you want to avoid trouble with pdf export, at the very least try to avoid transparency and filters.
The workaround for objects that doesn't render in the PDF output is to check the "Rasterize effects", for me it has worked flawlessly.
________________________________ From: Jasper van de Gronde <th.v.d.gronde@...226...> To: Inkscape User Community inkscape-user@lists.sourceforge.net Sent: Fri, April 15, 2011 3:39:32 AM Subject: Re: [Inkscape-user] Ink 0.48.1 gradients and PDF
On 2011-04-15 9:47, donn wrote:
Hi, Noticed today that if you have gradients that go to alpha 0% then they do not show up in a (save copy) PDF.
I have fairly old software, so perhaps my gnome PDF thing is out of date, but when I made the gradients go to white + alpha 100% (i.e. opaque) then the gradients worked in the PDF.
Any word on the rules in this regard?
It has been my experience that pdf support isn't always that great in non-Adobe products, so I would recommend trying adobe reader to see where the problem lies (if adobe reader doesn't display it something probably went wrong when exporting, if it does show it, chances are your pdf viewer just doesn't support it). In general, if you want to avoid trouble with pdf export, at the very least try to avoid transparency and filters.
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Inside Inkscape, select the object with the gradient, press ALT+B, it will generate a bitmap copy of the object, then you can delete the original object and export you PDF. This is a emergency solution, but it works for me. If you need your PDF for print, remember to select the Bitmap Copy preferences to 300dpi.
________________________________ From: donn <donn.ingle@...155...> To: inkscape-user@lists.sourceforge.net Sent: Fri, April 15, 2011 8:02:45 AM Subject: Re: [Inkscape-user] Ink 0.48.1 gradients and PDF
On 15/04/2011 14:46, Inti Alonso wrote:
The workaround for objects that doesn'trender in the PDF output is to check the "Rasterize effects"
Hi, thanks. I tried that but it seems to have no effect on gradients. I don't think gradients are 'effects' really.
\d
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On 15/04/11 08:47, donn wrote:
Hi, Noticed today that if you have gradients that go to alpha 0% then they do not show up in a (save copy) PDF.
I have fairly old software, so perhaps my gnome PDF thing is out of date, but when I made the gradients go to white + alpha 100% (i.e. opaque) then the gradients worked in the PDF.
Any word on the rules in this regard?
\d
Evince is quite bad at rendering gradients. the evince devs blame poppler, the poppler devs blame cairo. and the bugs sit around for years. if you want to see what the PDF really looks like you need to use adobe acroread.
https://bugzilla.gnome.org/show_bug.cgi?id=460132 https://bugs.freedesktop.org/show_bug.cgi?id=11719 https://bugs.launchpad.net/ubuntu/+source/poppler/+bug/710137 https://bugs.freedesktop.org/show_bug.cgi?id=33726
(interestingly older version of evince/gpdf could render some of these files better)
sam
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