Output multiple pages to 1 PNG image

["justin.frost" <ju...@fusion5.com.au>]

Hi all,

We use FOP to create multiple page PDF output and this is working great.  We
now have a project to support a device which cannot handle PDF's, so we need
to stream the output as a PNG image.

This is working great for 1 page output, but if it is more than 1 page, we
of course only get the first page as each page is a separate PNG.

Is there anyway to output all pages to a single PNG ?  We display the output
in an IFRAME as a streamed PNG image, so more than one PNG file is not an
option.

Cheers.



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RE: Output multiple pages to 1 PNG image

[Bernard Giannetti <th...@hotmail.com>]

Found this article which might help (assuming you're on Linux): http://rystraum.com/blog/2011/08/concatenating-images-with-montage/




> Date: Mon, 8 Oct 2012 16:40:56 -0700
> From: justin.frost@fusion5.com.au
> To: fop-users@xmlgraphics.apache.org
> Subject: Output multiple pages to 1 PNG image
> 
> Hi all,
> 
> We use FOP to create multiple page PDF output and this is working great.  We
> now have a project to support a device which cannot handle PDF's, so we need
> to stream the output as a PNG image.
> 
> This is working great for 1 page output, but if it is more than 1 page, we
> of course only get the first page as each page is a separate PNG.
> 
> Is there anyway to output all pages to a single PNG ?  We display the output
> in an IFRAME as a streamed PNG image, so more than one PNG file is not an
> option.
> 
> Cheers.
> 
> 
> 
> --
> View this message in context: http://apache-fop.1065347.n5.nabble.com/Output-multiple-pages-to-1-PNG-image-tp36997.html
> Sent from the FOP - Users mailing list archive at Nabble.com.
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: fop-users-unsubscribe@xmlgraphics.apache.org
> For additional commands, e-mail: fop-users-help@xmlgraphics.apache.org
> 
 		 	   		  

Re: Output multiple pages to 1 PNG image

[Luis Bernardo <lm...@gmail.com>]

If you have in mind multiple pages in one image the way TIFF does then 
that is not possible with PNG. There is a related format, MNG, that 
could do that, but FOP cannot output to that and in any case, your 
device would probably not be able to handle MNG. AFAIK, none of the 
browsers supports that natively, although there is a plugin to some of them.

On 10/9/12 12:40 AM, justin.frost wrote:
> Hi all,
>
> We use FOP to create multiple page PDF output and this is working great.  We
> now have a project to support a device which cannot handle PDF's, so we need
> to stream the output as a PNG image.
>
> This is working great for 1 page output, but if it is more than 1 page, we
> of course only get the first page as each page is a separate PNG.
>
> Is there anyway to output all pages to a single PNG ?  We display the output
> in an IFRAME as a streamed PNG image, so more than one PNG file is not an
> option.
>
> Cheers.
>
>
>
> --
> View this message in context: http://apache-fop.1065347.n5.nabble.com/Output-multiple-pages-to-1-PNG-image-tp36997.html
> Sent from the FOP - Users mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: fop-users-unsubscribe@xmlgraphics.apache.org
> For additional commands, e-mail: fop-users-help@xmlgraphics.apache.org
>


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