Search found 10 matches

by jfplante
2012-05-03T17:05:29-07:00
Forum: Users
Topic: PDF to PNG transparency conversion problem
Replies: 19
Views: 34813

Re: PDF to PNG transparency conversion problem

I created a bug for that: http://bugs.ghostscript.com/show_bug.cgi?id=693024
Will keep you posted.
by jfplante
2012-04-30T08:13:37-07:00
Forum: Users
Topic: PDF to PNG transparency conversion problem
Replies: 19
Views: 34813

Re: PDF to PNG transparency conversion problem

Thanks again, yes there will still be some cases where floodfill would not work, as you mention. I will post here if I find any way out of this problem...
by jfplante
2012-04-29T10:14:28-07:00
Forum: Users
Topic: PDF to PNG transparency conversion problem
Replies: 19
Views: 34813

Re: PDF to PNG transparency conversion problem

Thanks Fred, interesting observation about background transparency vs alpha channel, I'll dig into that direction. Unfortunately, the "-transparent white" will not work in the general case, since all white in the images gets removed. With this image, i was trying to boil down the generic c...
by jfplante
2012-04-28T13:42:24-07:00
Forum: Users
Topic: PDF to PNG transparency conversion problem
Replies: 19
Views: 34813

Re: PDF to PNG transparency conversion problem

By the way, is this the same output you have when using the convert command from pdf to png?
by jfplante
2012-04-28T13:41:10-07:00
Forum: Users
Topic: PDF to PNG transparency conversion problem
Replies: 19
Views: 34813

Re: PDF to PNG transparency conversion problem

Thanks Fred, So we actually end up with the same result, I do end up with that annoying white rectangle. The pdf is supposed to be a red circle and rectangle superimposed over a transparent background. No white at all (you can see that when you set acrobat to show transparency, or open it in illustr...
by jfplante
2012-04-27T19:50:35-07:00
Forum: Users
Topic: PDF to PNG transparency conversion problem
Replies: 19
Views: 34813

Re: PDF to PNG transparency conversion problem

Thanks Fred and Anthony, and sorry for the very late reply. I am just now starting back on this problem and hoping to solve that. Fred, as you mentioned, I had 2 versions of IM installed and a plethora of delegates. However, i tracked down the one that was really used and made sure the driver was in...
by jfplante
2011-08-29T14:57:14-07:00
Forum: Users
Topic: PDF to PNG transparency conversion problem
Replies: 19
Views: 34813

Re: PDF to PNG transparency conversion problem

Thanks Fred, sorry for the late reply. Yes, you are correct: this is a one page pdf with transparency. I checked my ps:alpha delegate, and I already had pngalpha device set so no luck there. Do you manage to get that file converted properly with your settings? http://publicly-shared.s3.amazonaws.com...
by jfplante
2011-08-23T17:54:42-07:00
Forum: Users
Topic: PDF to PNG transparency conversion problem
Replies: 19
Views: 34813

Re: PDF to PNG transparency conversion problem

Thanks Anthony, I do have the problem with ghostscript as well using pngalpha driver. I actually found a post in the ghostscript forum post that seem very similar to the question I have, unfortunately it is not solved. (http://old.nabble.com/Problem-converting-transparent-PDF-to-PNG-td31869338.html#...
by jfplante
2011-08-16T10:58:15-07:00
Forum: Users
Topic: PDF to PNG transparency conversion problem
Replies: 19
Views: 34813

Re: PDF to PNG transparency conversion problem

Thanks for the answer Anthony, I should have mentioned first that opening the linked pdf file in os x preview or illustrator does show geometric figures over a transparent background. I tried several of the tricks from those pages without success. Specifically, here a some of the commands I tried - ...
by jfplante
2011-08-15T14:28:30-07:00
Forum: Users
Topic: PDF to PNG transparency conversion problem
Replies: 19
Views: 34813

PDF to PNG transparency conversion problem

Hi everyone, I am having difficulties converting the seemingly simple pdf file linked below into a png, while respecting the transparency of the original pdf. The original image was much more complex but the problem seems to boil down to the presence of a raster placing with transparent background w...