iBook PDF Files Display Problems
- when I tried to open a file, error msg says "Book Format Error - This book cannot be opened because the format is not recognized, or is invalid". It's a pdf file! If I leave the file alone for quite some time, I may be able to open it successfully.
- after I open a file, the words are blurry and cannot focus properly.
- after I open a file, the pages are blank.
- the book icon has no image, just the default beige colour with the book title.
- the book icon (cover) takes on the image of a totally different file, e.g. The Economist magazine will show the National Geographic cover instead.
- sometimes the iBook app will crash.
Note that some files will display OK, but others will encounter the above problems. A file may be OK now and problematic later.
Here's what I tried to fix the problem, but no use:
- restarted iPad.
- ensure that memory is above 100MB (in case it's related to memory; iPad has 256MB in total memory from what I know).
- removed all books/magazines, and re-installed a smaller set. Note that all the files displayed perfectly before.
- removed the iBook app, download on iTunes, and re-install.
Note that my epub format books are OK all these while. Only the pdf books/mags are affected. Please help!
iPad version 3.2.1, Other OS