Mysterious Drop Shadow Around Transparent PNG's When Exported to PDF

Discussion in 'PowerPoint' started by KarenMurphy, Jun 9, 2014.

  1. KarenMurphy

    KarenMurphy

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    I'm importing transparent high resolution png's into a ppt presentation. I've imported a solid blue png that is the background for these png's. The problem is that when exported as a PDF - there is a slight drop shadow around the pngs. Can anyone help me understand how to stop the drop shadows from occurring? And where can I control the qmage quality of the PDF I'm outputting? I'm familiar with the Adobe Suite but not that familiar with PPT.
    Many thanks for any help. BTW- have tried in both offisce 2004 & 2011.
    Below is the original - with blue background:
    original.jpg

    Below - example of the strange dropshadow in exported PDF
    problem.jpg
     
    KarenMurphy, Jun 9, 2014
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  2. KarenMurphy

    KarenMurphy

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    I'm so used to the fabulous Adobe forums. Does anyone answer these questions here in this forum?
     
    KarenMurphy, Jun 13, 2014
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  3. KarenMurphy

    Ian Administrator

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    Yep, we do, I guess no-one knows the answer to this one though :(.

    My only thought would be to add the blue background to the PNG outside of PowerPoint, but that's not ideal. Which method are you using to save as a PDF?
     
    Ian, Jun 15, 2014
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  4. KarenMurphy

    KarenMurphy

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    many thanks for answering! I've tried a few things.
    Print > Save As PDF.
    Print > Save As PDF-x Gives a better quality but not great -- and this way - you can only print 1 page at a time - not good for a 21 page document.
    I think - also Save as & Export as PDF.

    So one way to approach this is - do you know where the settings are for image quality -- compression etc?
    I've also tried exporting the PNG's in MUCH higher res - that is somewhat better - but still great - and the shadow just seems to go white -- so now it's got an embossed effect instead of a drop shadow.
    I's so used to InDesign>PDF - because I know the many variations of compression etc. But Can't see where they are - or even if that kind of attention to Print quality is part of PPT. Again, Many thanks!

    Also - the Person I'm doing the project for wanted Transparent PNG's. So the blue background wasn't an option for this project. Excellent suggestion though.
     
    KarenMurphy, Jun 15, 2014
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  5. KarenMurphy

    Ian Administrator

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    Do you know which PDF printer you are using? I suspect that may be where the problem is. Is it Foxit PDF printer that you have installed?
     
    Ian, Jun 17, 2014
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  6. KarenMurphy

    KarenMurphy

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    I assume I am using Adobe Acrobat. I never downloaded Foxit -- and I did a search for it on my machine -- but no such thing turned up. many thanks again for your reply to this ongoing mystery!
     
    Last edited: Jun 17, 2014
    KarenMurphy, Jun 17, 2014
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  7. KarenMurphy

    Ian Administrator

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    You could try installing Foxit Reader (free) and try that PDF printer instead, it may work differently to the Adobe PDF export - worth a shot!

    http://www.foxitsoftware.com/downloads/

    If that doesn't work, I'm not sure what else to suggest unfortunately. :(
     
    Ian, Jun 18, 2014
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  8. KarenMurphy

    KarenMurphy

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    A good suggestion - but the problem is we can't control what PDF Printer the client-or the broader audience for these documents use - so that solution won't work in this scenario.

    Can you tell me where in PPT the print & output quality / image quality etc has it's controls and settings?

    Many thanks for all your help!
     
    KarenMurphy, Jun 18, 2014
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  9. KarenMurphy

    Ian Administrator

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    I don't have Adobe installed, but if you have an Adobe PDF printer listed, there should be a "printer properties" link under the printer selection dropdown (in 2013 at least). On my Foxit PDF printer, I can choose image resolution, compression type, etc... so I hope it is the same with Adobe.
     
    Ian, Jun 19, 2014
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