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Message from discussion "image file is an unrecognised format" when using open(image-url)
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Brad Ediger  
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 More options Mar 27 2012, 1:33 pm
From: Brad Ediger <brad.edi...@madriska.com>
Date: Tue, 27 Mar 2012 12:33:39 -0500
Local: Tues, Mar 27 2012 1:33 pm
Subject: Re: "image file is an unrecognised format" when using open(image-url)
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On Tue, Mar 27, 2012 at 9:30 AM, Jürgen B <juergen.brue...@gmail.com> wrote:
> @ Brad Edinger

> I have attached the image that I try to load as a background.
> I have also tested other images, but they all cause the same error as soon
> as the pdf has more than 1 page.

Jürgen,
Thank you for identifying the problem. This has been fixed on Prawn's
master branch with this commit:

https://github.com/prawnpdf/prawn/commit/d06f81b2f0e36f10f7b9f8f89824...

The issue was that Prawn would not rewind a passed-in IO object (such
as the one returned by open-uri) on subsequent calls to image(), so it
would try to start reading image data from the EOF and wouldn't be
able to find a PNG or JPG header.

Cheers,
Brad


 
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