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Old 06-30-2014, 05:03 PM   #16
ShellShock
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Originally Posted by avid01 View Post
I tested several EPUB reader software in the meantime. Conclusion: none, other than Calibre actually write inside the file. Other software use it intact, bookmarks are not stored in EPUB, but in the displaying software. I like the idea.
But does changing the file actually cause any real problems?
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Old 06-30-2014, 07:55 PM   #17
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And I would prefer it like this. Bookmarks and place info is not a feature of the viewer program, it should be intrinsic to the book.
If the LastReadPosition and Bookmarks were used by other viewers and respected by editing software I would give that a thumbs up.

But, AFAIK that data is not used by any other viewers. What's more, if I edit and save a bookmarked EPUB in Sigil, the bookmarks and last read position are lost. My guess is this probably happens if other software rewrites the EPUB.

Given the data is a) peculiar to the calibre viewer and b) not respected by other software, then I'm not sure your argument is entirely valid.

You may well ask, so what's the alternative. I admit I can't think of any that are particularly robust or portable between different viewers and 'editors'. If the viewer data was stored elsewhere (database, metadata.opf, viewer.dat) and then the book content was changed, the result would be that viewer data would be out of synch with the content.

The calibre book editor has no provision to use the bookmarks that I set in the calibre book viewer, as in go to them. And the bookmarks are not 'adjusted' to reflect the changes I make in the book's content files. So after an editor session I can see the bookmarks I previously set in the viewer, but they don't seem to work, as in go to them. But the editor isn't fully developed, so perhaps a future version will address this issue

The ebook world is eons away from being within a bull's roar of the Code Complete nirvana :lol:

BR

Last edited by BetterRed; 06-30-2014 at 10:07 PM.
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Old 03-31-2016, 10:22 AM   #18
dumining
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I stand humbly amidst the Calibre experts - however to answer the above, it bugs me that the size changes as I use an inverted dupe filter to quickly see if there are any ebook files I havent added to calibre yet (searching drives for pdf, mobi, epub)....because Calibre changes the epub file size, the method gives me false positives that mean I sometimes have to search Calibre to see if a book has been already added, considerably slowing the process .....at least I know the upside of the downside so to speak now......
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Old 03-31-2016, 10:45 AM   #19
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So disable that feature.
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Old 04-01-2016, 12:07 AM   #20
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Originally Posted by dumining View Post
I stand humbly amidst the Calibre experts - however to answer the above, it bugs me that the size changes as I use an inverted dupe filter to quickly see if there are any ebook files I havent added to calibre yet (searching drives for pdf, mobi, epub)....because Calibre changes the epub file size, the method gives me false positives that mean I sometimes have to search Calibre to see if a book has been already added, considerably slowing the process .....at least I know the upside of the downside so to speak now......
You revived an ancient thread to whine that you need to uncheck an option in the ebook viewer preferences to stop the ebook viewer from adding a file to your ebook and changing its size? Did you even bother to read this thread?

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If someone doesn't want the bookmark file added simply uncheck the option to Remember the current page when quitting.
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Old 04-01-2016, 01:16 AM   #21
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Old 04-02-2016, 06:59 AM   #22
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Originally Posted by BetterRed View Post
But, AFAIK that data is not used by any other viewers. What's more, if I edit and save a bookmarked EPUB in Sigil, the bookmarks and last read position are lost. My guess is this probably happens if other software rewrites the EPUB.
BR
This is, why I don't use sigil for editing an existing books without checking it with calibre's editor before. You can never know, what else you loose if a file is not mentioned in the manifest. This is a problem as well for books with soft DRM where the license information is in a separate file. After you open ans save the modified book with sigil you even do not recognize that you loose your license information.

For some it seems to be a feature, but if I know about the special mannerisms of programs, I know the way around them
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