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Exporting 72 dpi project??

1169 Views 10 Replies Latest reply: Nov 29, 2012 10:17 AM by fruhulda RSS
Ben Low Level 1 Level 1 (45 points)
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Apr 30, 2012 4:36 PM

How's this for irony.  I've been complaining for the last couple of years that Pages doesn't export a 300dpi PDF.  And now it appears that export > best does seem to give us a 300dpi PDF.  At least when I analyze it in Adobe Acrobat Pro ... it appears to be 300dpi.

 

Which is terrific.

 

But which leads me to a question.  I want to output a 72dpi PDF ... to be used as the cover graphic for the menu of a DVD.  (If I use a 300 dpi image it causes problems in DVD Studio Pro.)

 

What I can see doing is importing the 300dpi document and running it through Photoshop, which rasterizes the thing (I'm not sure if this isn't degenerating the final image for DVD Studio Pro) and change it to 72 dpi.

 

Is there a way, that anyone might know of, to export a 72 dpi document out of Pages now?  Some way to control the export.  I'm about to export > good & better to see if this changes the dpi.

 

 

Any suggestions would be most appreciated, thank you,

 

 

Ben

  • PeterBreis0807 Level 7 Level 7 (27,285 points)
    Currently Being Moderated
    Apr 30, 2012 5:10 PM (in response to Ben Low)

    Pages exports to 300dpi if you have 300dpi resolution bitmaps at the size used in Pages, providing you haven't used any transparency on them.

     

    Menu > File > Export > PDF > Good should get you 72dpi as should Menu > File > Reduce File Size

     

    Always experiment and record the results to ensure that the results are what you want.

     

    Peter

  • PeterBreis0807 Level 7 Level 7 (27,285 points)
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    Apr 30, 2012 7:28 PM (in response to Ben Low)

    Ben Low wrote:

     

    Thank you Peter,

     

    I'm using 300dpi images in Pages.  I'm not sure what "if you have 300dpi resolution bitmaps at the size used in Pages' means?

     

    It means 300dpi at the size used. If you stretch the image the dpi goes down. If you shrink the image the dpi goes up. dpi = Dots Per Inch. Be better expressed as pixels per inch.

     

    'Transparency' means using 'drop-shadows'?  Does using 'gradients' also mean I'm creating transparency?

     

    Transparency = transparent objects over bitmaps (photos), shadows, reflections, decorative frames, 3D graphs and probably not gradients unless they are applied to a bitmap image.

     

    I've been doing some tests, and thank you, 'good' does give me 72 dpi.

     

    I notice the end result PDF is a vector file.  Sweet.

     

    A pdf can contain both vector and bitmap.

     

    Can you recommend a way I can check a particular file to know what dpi the different elements are?  I've been using Acrobat Pro, but it doesn't seem to want to just give me a list of the elements in the PDF and their resolution.  I use the 'Advanced > Preflight.  But then Adobe comes at it slightly obliquely, 'list images below 250ppi', with a series of questions.  I'm not sophisticated enough in the printing lexicon to understand the possibiities.

     

    Acrobat Pro will run a verification of the pdf and report on any issues. For commercial print the minimum resolution should be 300 dpi (250 at a pinch and will look blurry). Pages has no tools to check the results. 

     

    I'd love to have an app that I could open up the PDF in, that would tell me simply: "Here are the elements in this file, here is the overall dpi, or the individual dpi of each element."

     

    That would be Acrobat Pro or some hard to justify the cost  Pro PDF tools.

  • fruhulda Level 6 Level 6 (14,730 points)
    Currently Being Moderated
    Apr 30, 2012 10:24 PM (in response to Ben Low)

    Ben - here is a snippet from the Pages User Guide:

     

    If you’re exporting to PDF, you must choose an image quality (a higher image quality results in a larger PDF file):

    Best:      Image resolutions are not scaled down.

    Better:          Images are downsampled to 150 dpi. Images without transparency (alpha channel) are JPEG-compressed by 0.7.

    Good:          Images are downsampled to 72 dpi. Images without transparency (alpha channel) are JPEG-compressed by 0.9.


    PPC MMD (10.5.8), MBP 15, Mac OS X (10.6.8), 4 GB DRAM
  • fruhulda Level 6 Level 6 (14,730 points)
    Currently Being Moderated
    Apr 30, 2012 10:39 PM (in response to Ben Low)

    I have been able to get 300 dpi out as long as I have had Pages 09. Haven't used it much though. I did refrain from using transparency and shadows though. Are you on a Lion machine? I have Snow Leopard. If I want 30 dpi for shadows I have to use a special created option, reachable when going Cmd +P. I am not sure I still have it.

  • trrow Calculating status...
    Currently Being Moderated
    Nov 29, 2012 8:02 AM (in response to fruhulda)

    I am on Mountain Lion and am unable to get 300 DPI ouput from a image that was originally 300 DPI but using a drop shadow (which now I understand makes it into a 72 DPI image) So do not update to Mountain Lion expecting these results. Does anyone know a way to drop the shadow behind the image therefore retaining the 300 DPI image? Thanks!

  • fruhulda Level 6 Level 6 (14,730 points)
    Currently Being Moderated
    Nov 29, 2012 10:17 AM (in response to trrow)

    If you use transparency or shadow feature in  Pages you will only get 72 dpi

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