[reportlab-users] Oversaturated, wrong colours in PDF generated with Reportlab

Robin Becker robin at reportlab.com
Thu Apr 15 06:42:10 EDT 2021

On 14/04/2021 18:05, Stefano Salati via reportlab-users wrote:
> Hello,
> I'm including several images (JPEG, RGB, color profile sRGB IEC61966-2.1) in a pdf using the drawImage() method. The images are exported with Adobe Lightroom. I'm using MacOS BigSur.
> In the resulting pdf all images have oversaturated colours if the pdf is opened with MacOS Preview, and normal colours if opened with, say, Google Chrome.
> I searched in the Reportlab docs but I cannot find anything that can help me here. Does it have anything to do with the pdf document config or the way images are included?
> I don't think it's got anything to do with the images themselves because, if I create a pdf with some other sw, say MacOS Keynote, colours are fine.
> Also interesting: if I open the file gerenated with Reportlab with MacOS Preview and export it as pdf, all colours are "fixed".
> Thanks a lot in advance for any help!

Hi Stefano,

The rl code just uses jpegs directly, but I suspect any RGB image with a specific colour space will need extra code 
somehow. Ie a specific colour space would need to be used; I don't think we support those as yet.
Robin Becker

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