iBook errors when reading a PDF

Apple Ipad 16gb tablet
July 13, 2010 at 09:41:25
Specs: Macintosh
The iPad, iPhone or iPods are wonderful and powerful but tiny computers compared to your desktops this days. They are equivalent to desktops from more than a decade ago. Imagine a full desktop from those days 12 years ago compacted in the form factor of the iPhone or the iPad. Yes, this is our present and future.

Well, when you read a large 100 page scanned PDF on your iBook app with your iPad or iPhone it may produce errors, blank pages or it may even collapse your iBook app or another PDF reader running inside your device.

When I tried to open a heavy graphic 12.6 mb PDF file on my iPod touch 2nd generation it brought down iBooks and closed. But the same document on an iPad opened and displayed every page just fine.

But consider that a larger 15 mb PDF on my iPod Touch reads fine if this is an only text book file without any graphics.

On a PDF document a page may not be just another page and this single but complex page may demand a lot more from your system. Some other times a page is just another page but is the one that reached the system limit and wont display correctly or may collapse your app.

This happens because this small computers are reaching their limits. The ipad may have a larger capacity but it may eventually reach its limits too.


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#1
July 13, 2010 at 19:32:32
One of the largest PDF I have seen was 135 mb near 150 pages and it
was generated from scanned documents. But in my opinion it was
created with a very high quality or low compression settings and this
was unnecessary as the resulting file was too big. If you put a PDF this
big on an iPad it may not open at all. Or maybe the PDF is generated
with errors from the scanner because the computer used was not
capable enough. With commercial PDF books or documents created for
the iPad this problem will rarely occur.

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