can anyone tell me why I can't open this properly on ipad?

Discussion in 'iPad Help' started by addiosamigo, Aug 27, 2011.

  1. addiosamigo
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    addiosamigo iPad Junkie

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    opens fine in windows but the pictures don't show up on ipad??

    WINDSOR RISE BROCHURE final draft.pdf
  2. Mickey330
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    Mickey330 Administrator Staff Member

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    Huh, that is weird. I tried to open it in Atomic Web Browser (in the same tab and in an alternate tab). Then, I downloaded it to Atomic. Tried to open the PDF in both Atomic and GoodReader. Still no picures. So, I sent it to Dropbox (from within Atomic). Still no. Sent it to iAnnotate from Dropbox - no again!

    Those pictures do not want to show up on the iPad, no matter which program I use. And yes, the brochure opens fine in my Firefox browser (v5) on my Windows 7 machine.

    Nice brochure, BTW - but can't tell you why nothing shows on the iPad...

    Marilyn
  3. DrHouse
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    DrHouse iPad Junkie

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    I did the same tests with different pdf views on the iPad, and still no luck. But I opened the pdf on my Ubuntu laptop and found out that the images are taking a longer time to show up. Seems like those images are pretty big, and maybe too big for the iPad to show them.

    VicoPad addict!
  4. twerppoet
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    twerppoet iPad Legend

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    Some PDF creation tools use compression methods that the iPad does not recognize. The usual fix it to open the PDF on the computer in Preview (Mac), Adobe Reader, or some other PDF viewer/editor, then use Save As (Export in OSX Lion) to recreate the file without the compression.

    I've doen this many a time with Preview on my iMac, and it almost always works. I'm not certain about Adobe Reader. One way to see if it (probably) worked is to compare the file info on the before and after file. The after file should be bigger.

    I'm testing this now on my Mac, but it's taking a while for the emails to go through. I'll do a follow up to let you know if it worked or not. I can only test Preview. I don't have Adobe Reader or other software to test. I've heard the Cute PDF works as well.
  5. addiosamigo
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    addiosamigo iPad Junkie

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    Thanks for the assistance!
  6. twerppoet
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    twerppoet iPad Legend

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    I got tired of waiting for the larger file to get through mail; so I used File Sharing through iTunes on the 35MB file. That's the bad news. The new file is about 6 times larger than the original. The good new is it displays just fine.

    We've seen this before. A couple months back a student had a text book from a site that used some super-compresion method that made them unreadable on the iPad. The ratio was about the same.
    Last edited: Aug 27, 2011
  7. addiosamigo
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    addiosamigo iPad Junkie

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    Ah ok! Thanks for that, so I'm guessing the original file was compressed because of it's size?
  8. twerppoet
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    twerppoet iPad Legend

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    Yes, well, all PDF files are compressed to some extent. The compression used in the original file is pretty good. It's less than 6MB. With all the photos it contains thats pretty darn good compression for the quality of the photos it retained.

    I could have compressed the PDF using Preview, but it's compression engine is not as good as whatever the first file was compressed with. I can make it smaller (about 1MB) but the quality suffers. It's still good enough for reading (and probably the iPad) but it would make a lousy print.

    I suppose if I could find a finer grain of control I might be able to reproduce the same file size and quality while making it iPad compatible (shrug). But it's an on/off feature in the current version of Preview (at least that's all I've found so far).
  9. addiosamigo
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    addiosamigo iPad Junkie

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    Ok thanks for all your help! Can I do the same as you've done with any free programs on windows?
  10. twerppoet
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    twerppoet iPad Legend

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    At least one other member reported success using Cute PDF. At least, that's the only free program I can remember being mentioned.
  11. addiosamigo
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    addiosamigo iPad Junkie

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    Ok I'll try that! Thanks for all your help!
  12. twerppoet
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    twerppoet iPad Legend

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    No problem. Be sure to let us know if it works, or not. Keeps us honest, and helps promote a wider variety of mistakes and misinformation. :D
  13. Parrori1
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    Parrori1 iPad Fan

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    It opened fine in my ipad for me. All I did was reverse pinch it and kept making it larger, exposing a 12 page brochure.
  14. twerppoet
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    twerppoet iPad Legend

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    Good to hear. Though it would be better if it preserved the pages.
  15. addiosamigo
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    addiosamigo iPad Junkie

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    What app did you use? Goodreader?
  16. Parrori1
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    I didn't use anything to open it. I just pinched the teensy pic in your message and the pic got larger till it was all visible.

    You can then tap on the top right and options to open in iBooks, dropbox and a couple of other choices.
    ___________________________________

    Update. No pics show up, just text, icons and charts.
    Last edited: Aug 28, 2011
  17. twerppoet
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    twerppoet iPad Legend

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    Did it have the pictures in it, not just the floor plans, but the pictures of the outsides of the buildings? On my iPad (before re-saving it) the first couple pages after the title page were blocks of text and large blank areas.

    Here is what it looks like after exporting (and super compressed by Preview to save space).

    Edit: For whatever reason the attachment is not showing up in the IPF app. Here's a link instead.

    Attached Files:

    Last edited: Aug 28, 2011
  18. Parrori1
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    Parrori1 iPad Fan

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    No pictures. Also the one I opened had final draft in the link where as the one with the pics has "brochure". So I don't understand.

    However, using your link, everything is visible and be saved to iBooks and dropbox, with pictures.
    Last edited: Aug 28, 2011
  19. twerppoet
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    twerppoet iPad Legend

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    The pictures were compressed using some method that the iPad does not understand, so that they don't open in the document. Computer's generally have much larger libraries of decompression algorithms (because theres plenty of room to support even rare methods.

    By opening the PDF in another program and forcing it to save the PDF again using it's own compression software you can make the pictures available on the iPad again. Assuming it uses the more common algorithms, which most free and cheap software does.

    Despite PDF being an open standard, some implementations are more standard than others.

    Using Preview on an iMac works especially well, since Apple is more likely to support their own subset of the standards. The only problem is that Preview currently has two compression methods. One does little, and the file was 35MB (as opposed to the original 6MB). The second is full on, and while the file got smaller (less than 1MB), the quality of the pictures went way down; notice how bad it looks the moment you zoom in a bit. You can even see some artifacts with out zooming. The original pictures were much higher quality.
    Last edited: Aug 28, 2011
  20. addiosamigo
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    addiosamigo iPad Junkie

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    How did you make it such a small file??

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