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Old 10-10-2011, 06:13 AM   #1
atomheart
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Returning the T1

I purchased the T1 yesterday hoping its pdf zooming/cropping features were actually usable compared to the 650, but alas it is not so. It’s unfortunate Sony ereaders (and ereaders in general) do not have a zooming feature akin to run-of-the-mill pdf viewing software, i.e. continuous scrolling at an arbitrary width that does not mangle the pdf to a fixed viewing ratio. Is anyone else miffed about ereader pdf handling? The lack of functional pdf zooming coupled with the T1 randomly not allowing full pdf (raster pdf) page width in landscape mode is a deal breaker. The 650 is less than ideal pdf wise, yet it has never flaked and not displayed a pdf in landscape when selected. I also noticed using the T1's landscape orientation the pdf contents were displayed in portrait layout: the 650 on the other hand retains the landscape format for menus and lists while in landscape. I did like the T1’s menu layout, button functionality, wifi and nicely implemented web browser: however, these merits were eclipsed by the previously mentioned defects.
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Old 10-10-2011, 08:54 AM   #2
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Not at all. An ereader is primarily designed to read ebooks, not documents.

If PDF viewing is critical to you then I would recommend you purchase a tablet for that purpose.
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Old 10-10-2011, 10:31 AM   #3
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Not at all. An ereader is primarily designed to read ebooks, not documents.

If PDF viewing is critical to you then I would recommend you purchase a tablet for that purpose.
Define ebook. Is the definition restricted to .ebub, .mobi, or packaged html? Many ‘ebooks’ are sold and distributed as .pdf. There is no strict differentiation between an ‘ebook’ and ‘document’ with respect to .pdf. Regarding tablets, the line is arbitrary between an ereader and a tablet software/hardware wise. More sensible pdf handling would be a trival software/firmware update by Sony.
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Old 10-10-2011, 11:16 AM   #4
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A PDF is a document, primarily designed around the A4 paper size. The format is not designed to be read on a 5-6" screen.

In defense of Sony, no ereader is capable of displaying PDF really well. A tablet can, in comparison, be able to display a PDF quite well due to larger screen size.
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Old 10-10-2011, 11:48 AM   #5
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A PDF is a document, primarily designed around the A4 paper size. The format is not designed to be read on a 5-6" screen.
Pdf can output a myriad of predefined formats as well as custom formats: I fail to see how it is designed around A4. For instance, the Sony supplied PRS 650 user manual is a pdf formated for the 6" screen.
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Old 10-10-2011, 11:58 AM   #6
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Pdf can output a myriad of predefined formats as well as custom formats: I fail to see how it is designed around A4. For instance, the Sony supplied PRS 650 user manual is a pdf formated for the 6" screen.
Main purpose in epub format is support reflowable text for various screen size devices. The content typically used in this format is not dependent on a particular page size to look good, like a novel for example.

Main purpose pdf is preserve the printed page exactly how it is, works good for technical documents or brochures where you very well might need a diagram or picture to be display on the same page as the text for it make sense.

Not sure about the 650, but the provided user manual included on the T1 is actually epub FWIW.
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Old 10-10-2011, 12:06 PM   #7
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Pdf can output a myriad of predefined formats as well as custom formats: I fail to see how it is designed around A4. For instance, the Sony supplied PRS 650 user manual is a pdf formated for the 6" screen.
Yeah, but because it is made for 6", but the problem with the rest of PDFs are that they are mostly created for A4 and a user cannot change it (by design!).
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Old 10-10-2011, 12:11 PM   #8
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Main purpose pdf is preserve the printed page exactly how it is, works good for technical documents or brochures where you very well might need a diagram or picture to be display on the same page as the text for it make sense.
Absolutely. And many technical books with equations and graph content do not translate well to html/epub which is why they are distributed as pdf. Busy pdf formatting does not lend itself to reflow which is were 'zooming' is applicable. However, Sony's pdf croping, page layout, and zooming implementation does not capitalize on available screen space.
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Old 10-10-2011, 12:56 PM   #9
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Frankly speaking, regarding PDF reading, I don't think it's just the issue of screen size, it's more about firmware. For instance, issues such as excessive flashing and a landscape mode disallowing annotation or 2-col view might be solvable easily with a better firmware that cares PDF reading.
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Old 10-10-2011, 05:52 PM   #10
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Isnt a Kindle DX more suited to PDF reading (tech docs, journal articles, etc.) because that has a 9.7 inch screen.
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Old 10-10-2011, 05:59 PM   #11
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Isnt a Kindle DX more suited to PDF reading (tech docs, journal articles, etc.) because that has a 9.7 inch screen.
Yes and no. The screen size is good. But the PDF viewing software is awful.
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Old 10-10-2011, 10:31 PM   #12
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Atomheart, if you haven't already installed the latest version of Prs+, I suggest you do so. It improves 650 pdf functionality by allowing pan while the screen is in zoom lock mode. Still a pain, but an improvement.
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Old 10-11-2011, 01:55 AM   #13
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...More sensible pdf handling would be a trival software/firmware update by Sony.
I wrote a plug-in for Acrobat about 10 years ago that magnified arbitrary parts of pages by user-defined scales, and I can say that it was far from trivial. The documentation was poor, and even wrong if I recall correctly in terms of the transformation matrices. I'm not a bit surprized that so few PDF viewers get arbitrary zooming and panning right.
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