[xep-support] Re: eps into pdfs...options?

[Eric J. Schwarzenbach]

Thanks, Kevin, that -dEPSCrop option (from the link you included) was 
what I was missing. I'd tried various other options (like -dUseArtBox) 
which had seemed to work for properly cropping rendering to raster 
format, I'd not hit on the right combination.

Eric

On 08/14/2014 03:25 PM, Kevin Brown wrote:
>
> Eric:
>
> See below for my input.
>
> Kevin
>
> *From:*Xep-support [mailto:xep-support-bounces at renderx.com] *On Behalf 
> Of *Eric J. Schwarzenbach
> *Sent:* Thursday, August 14, 2014 11:19 AM
> *To:* RenderX Community Support List
> *Subject:* [xep-support] eps into pdfs...options?
>
> Hi,
>
> This email is kind of long, so I want to preface it with a short list 
> of the questions I'm looking for answers to or advice regarding.
>
> 1) Any advice / best options for converting eps files to make them 
> renderable to PDF? (ghostscript vs pstoedit, vs uniconverter vs ...?)
>
> I have had some success with EPS to PDF via Ghostscript but have not 
> tested or run other products. Maybe Imagemagick would also do this.
>
>
>
> 2) If I convert the eps to pdf, to embed that pdf image during xep 
> rendering, is there any way to make xep use the image bounding box of 
> the image instead of the page size as the image bounding box?
>
> To this I am  bit confused. When you convert the EPS to PDF, you 
> should do it so that the EPS image **is** the PDF page size. I am not 
> a ghostscript expert but at one time I did do this. I think it is a 
> matter of setting the correct flags to crop the EPS to the bounding 
> box size and then setting the paper size to that same size.
>
> See 
> http://stackoverflow.com/questions/14595521/how-to-set-the-physical-size-of-pdf-pages-with-ghostscript
>
>
>
> 3) Am I likely to have more difficulty getting an exact rendering, 
> converting to SVG as opposed to PDF (or to a raster format)?
>
> Well, that would I guess depend on the quality of the EPS to SVG 
> conversion. That being said, if you get excellent results like this 
> then I would use SVG because it works in all output.
>
>
>
> 4) Any other approaches I'm missing?
>
> If anyone has advice relevant to any of these items, I'd much 
> appreciate hearing it (and there's additional relevant details below).
>
> Thanks,
>
> Eric
>
> --------------------------------------------------------------------------
>
> We've been struggling with the need to use eps files in pdf 
> renderings. A client of ours has a massive quantity of hi res art 
> which they've produced in illustrator and have saved as eps for 
> sending to printers and use in other systems. While they want to move 
> to svg in the long run, it will be a while before they will be able 
> convert / re-export all these files and make sure they still look 
> right. They've been burned before by conversions that don't render 
> things quite the same way, mucking up font positioning and such.
>
> My understanding is that xep cannot handle eps files when rendering to 
> pdf, or rather it only uses the embedded preview tif, which in this 
> client's case is not only poor quality, but causes the xep rendering 
> to fail catastrophically with an "alpha channel unsupported" error. 
> Re-exporting all their art with better tiffs is not really an option 
> either.
>
> So we're looking at conversion options. Ghostscript seems to do a 
> pretty good job of rendering to raster formats, so this at least is a 
> fallback for us, but they would really like to have resolution 
> independent graphics in their pdfs. Ghostscript also seems to offer a 
> ton of rendering options including distiller options, so I would guess 
> we can replicate whatever options the client needs to duplicate the 
> image rendering they get with whatever version of illustrator they 
> generated these with. (Actually using distiller might be another fall 
> back.)
>
> So converting to PDF might be an option, as ghostscript seems to also 
> produce a reasonable pdf. However the PDF seems to want to be a page, 
> and we really need these to be the proper image size of each 
> individual image. It's not clear to me if there is a way to do a 
> ghostscript conversions where the page size is determined by the image 
> dimensions. Alternately it's not clear to me if the bounding box of 
> the image is preserved in the PDF and if so, whether that is something 
> renderx can be made to use. In initial experiments renderx seems to 
> use the page size as the bounding box of the image.
>
> Converting to SVG is another possibility. I've been playing with 
> pstoedit and can get svgs out of that, though it does not seem to have 
> much in the way of eps rendering options. I started looking at 
> uniconverter also, and if I can ever figure out how to install their 
> plugin for svg support that might be another option.
>
>
>
> 
>
>
>
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