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graph22
graph22
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Converting .emf files to .png maintaining 300 dpi resolution

Feb 3, 2013 10:40 AM

Hi,

 

Can this be done? If so, how?

 

Thanks!

588 Views   9 Replies   Latest reply: graph22, Feb 3, 2013 3:21 PM
 
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  • gator soup
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    1. gator soup,
    Feb 3, 2013 11:25 AM   in reply to graph22
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    save (export or print) your .emf as .pdf -- open the .pdf in Photoshop, raster at desired resolution (ppi)

     

    your original pixels will have to be at least the target dimensions/resolution or they will pick up pixelation, the vector/text objects should not be a problem retaining sharpness at any size

     
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  • gator soup
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    2. gator soup,
    Feb 3, 2013 11:27 AM   in reply to gator soup
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    btw

     

    if you are trying to get your .emf into InDesign for printing, try Placing the saved .pdf into Indesign and your printer should be able to print the vector vector sharp...

     
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  • gator soup
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    3. gator soup,
    Feb 3, 2013 11:35 AM   in reply to gator soup
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    ps

     

    i notice you want 300ppi

     

    use Photoshop File> Save As (because Save for Web will likely output at 72ppi)

     

    note that File> Save As .png embeds a ICC profile regardless of what the dialog says

     

    if you don't want a profile embedded, you better check the saved .png ...

     
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  • graph22
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    4. graph22,
    Feb 3, 2013 12:55 PM   in reply to gator soup
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    This is great. Thanks!

     

    Couple more questions:

     

    -When I open the converted .png, the res is 299.999 dpi, which I suppose is fine right? But why is that happening.

     

    -It's also opening with a transparent background. Should that be happening?

     

    Thanks again!

     
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  • Chris Cox
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    5. Chris Cox,
    Feb 3, 2013 1:01 PM   in reply to graph22
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    It's happening because PNG specifies resolution in pixels / meter, and stores it as a fixed point.  The conversion to and from meters to inches loses some precision when stored as a fixed point value.  (this is really a problem in many applications that read and write PNG)

     

    In Photoshop CS6 I changed the PNG code to recognize "near" integer values and snap them to the nearest integer.

     
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  • graph22
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    6. graph22,
    Feb 3, 2013 1:07 PM   in reply to Chris Cox
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    Thanks! How do you change the PNG code?

     

    And after converting the emf to PDF, why is the Photoshop PDF opening in Photoshop with transparency? Is there a way around that? Or just add a non-transparent layer?

     

    Thanks again!

     
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  • gator soup
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    7. gator soup,
    Feb 3, 2013 2:05 PM   in reply to graph22
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    How do you change the PNG code?

     

    Chris writes the actual Photoshop code (I believe) I don't think it's something we can do (if I understand your ? correctly).

     

    Image> Image Size> Resolution: typing 300 over the 299.99 doesn't stick or does it throw your pixel dimensions off?

     

    PDF opening in Photoshop with transparency? Is there a way around that?

     

    Layers> Flatten

    File> Save As

    unchecking some of the Save options may have a similar effect on transparency, layers, ect

     
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  • graph22
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    8. graph22,
    Feb 3, 2013 2:48 PM   in reply to gator soup
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    Great. Thanks! Flattening worked. And for some reason upped the DPI to 300. Thanks again!

     
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  • graph22
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    9. graph22,
    Feb 3, 2013 3:21 PM   in reply to graph22
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    Is there a way to do this conversion with multiple .emf files at once? Say if you had multiple artboards in an .emf file?

     

    Thanks.

     
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