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Old 05-16-2015, 12:33 PM   #1
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FXL & page-progression-direction

Hello,

I have a Fixed Layout ePub3, it's in hebrew so I've added:
Code:
page-progression-direction="rtl"
to the spine element in content.opf.

The file is validated using ePubCheck, however, when I try to view it on GitdenReader pages go from left to right instead of right to left.
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Old 05-16-2015, 09:35 PM   #2
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Does your HTML have markup to indicate the direction? If not, try changing the html tag to <html dir="rtl">.

Better yet, use the direction CSS property.

Last edited by dgatwood; 05-16-2015 at 09:39 PM.
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Old 05-17-2015, 02:34 AM   #3
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Originally Posted by dgatwood View Post
Does your HTML have markup to indicate the direction? If not, try changing the html tag to <html dir="rtl">.

Better yet, use the direction CSS property.
Yep, I've sent you the file in private.
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Old 05-18-2015, 03:20 AM   #4
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Ideas? anyone?
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Old 05-18-2015, 04:32 AM   #5
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Originally Posted by odedta View Post
Ideas? anyone?
While Gitden Reader is pretty good at rendering epub3 files it's not 100% epub3 compliant. But then again no other epub3 app is.

Did you test your book with Readium? If it works with Readium it's simply a Gitden bug. If it doesn't work with Readium there might be another setting that you're missing.

AFAIK, the only other free iOS/Android epub3 reading app with RTL support is Menestrello, which supports RTL if you embed a Hebrew font. (Just ignore the no audio book warning.) It couldn't hurt to test your book with this app, too.
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Old 05-18-2015, 07:49 AM   #6
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Quote:
Originally Posted by Doitsu View Post
While Gitden Reader is pretty good at rendering epub3 files it's not 100% epub3 compliant. But then again no other epub3 app is.

Did you test your book with Readium? If it works with Readium it's simply a Gitden bug. If it doesn't work with Readium there might be another setting that you're missing.

AFAIK, the only other free iOS/Android epub3 reading app with RTL support is Menestrello, which supports RTL if you embed a Hebrew font. (Just ignore the no audio book warning.) It couldn't hurt to test your book with this app, too.
Ah! I didn't know Readium does Fixed Layout, I've just tried it and it looks horrible there :P

Anyway, it seemed to be a Gitden bug, not accepting page-progression-direction="rtl". I've tried Menstrello before, was horrible.

Thanks Doitsu.
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Old 05-18-2015, 08:46 AM   #7
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Unfortunately, very few ePub reading apps currently support RTL text, which makes life difficult for readers of languages like Arabic and Hebrew. ADE doesn't support it, for example.
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Old 05-18-2015, 08:47 AM   #8
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Quote:
Originally Posted by odedta View Post
Ah! I didn't know Readium does Fixed Layout, I've just tried it and it looks horrible there :P
Readium does display Fixed Layout books, after all it's the official IDPF epub3 rendering engine. (Obviously, it doesn't support FXL extensions introduced by Apple and other software manufacturers.)

BTW, if you've checked your book with epubcheck 3.0.1, you may want to also check it with the epubcheck 4 alpha version, which has been optimized for epub3 books.
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Old 05-18-2015, 08:48 AM   #9
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Originally Posted by HarryT View Post
Unfortunately, very few ePub reading apps currently support RTL text, which makes life difficult for readers of languages like Arabic and Hebrew. ADE doesn't support it, for example.
ADE 4 supports RTL in epub3 ebooks.
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Old 05-18-2015, 08:53 AM   #10
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Quote:
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ADE 4 supports RTL in epub3 ebooks.
Does any reading device currently use ADE 4?
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Old 05-18-2015, 09:02 AM   #11
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Does any reading device currently use ADE 4?
None that I know of. But it stands to reason that the next generation of RMSDK based reading apps will support RTL in epub3 ebooks.

However, since the majority of commercially available epubs are epub2 ebooks, it might take a while for epub3 to catch on.

AFAIK, the only eInk reader that supports RTL out of the box is the Kindle (K3 or higher with the latest firmware).
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Old 05-18-2015, 09:04 AM   #12
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Quote:
Originally Posted by Doitsu View Post
AFAIK, the only eInk reader that supports RTL out of the box is the Kindle (K3 or higher with the latest firmware).
I may be wrong, but I think the Kobo supports it with "kepub" books.
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Old 05-18-2015, 09:11 AM   #13
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I may be wrong, but I think the Kobo supports it with "kepub" books.
IIRC, Kobo kepubs have limited RTL support. The do support RTL but no context-sensitive character shaping. I.e., they support Hebrew but not Arabic. Also Kobo readers use the ACCESS engine for kepubs.
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Old 05-18-2015, 09:18 AM   #14
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Quote:
Originally Posted by Doitsu View Post
IIRC, Kobo kepubs have limited RTL support. The do support RTL but no context-sensitive character shaping. I.e., they support Hebrew but not Arabic. Also Kobo readers use the ACCESS engine for kepubs.
Thanks for the additional information. Yes, I was aware that Kobo doesn't use ADE for Kepub. Although the Kindle supports Arabic for KF8-format books, it too has some issues relating to embedded fonts, I believe?
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Old 05-18-2015, 10:32 AM   #15
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Quote:
Originally Posted by Doitsu View Post
Readium does display Fixed Layout books, after all it's the official IDPF epub3 rendering engine. (Obviously, it doesn't support FXL extensions introduced by Apple and other software manufacturers.)

BTW, if you've checked your book with epubcheck 3.0.1, you may want to also check it with the epubcheck 4 alpha version, which has been optimized for epub3 books.
I'm actually using this awesome tool http://www.pagina-online.de/produkte/epub-checker/

I really dislike those command line, but, i'll give it a go.
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