|  10-13-2025, 12:34 PM | #1 | 
| Junior Member  Posts: 6 Karma: 10 Join Date: Sep 2025 Device: Kobo Clara BW | 
				
				Standard EBooks Adds (kepub imports as epub)
			 
			
			When I add a kepub from Standard Ebooks, it shows up as an epub instead of as a kepub. Also, when I add the advanced epub from Standard Ebooks, no cover comes through. Any ideas? Here's an example to try out: https://standardebooks.org/ebooks/h-...es-dexter-ward I'm using 8.12. | 
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|  10-13-2025, 12:59 PM | #2 | |
| Resident Curmudgeon            Posts: 80,727 Karma: 150249619 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3 | Quote: 
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|  10-13-2025, 01:51 PM | #3 | |
| Junior Member  Posts: 6 Karma: 10 Join Date: Sep 2025 Device: Kobo Clara BW | Quote: 
 What code is atrocious? | |
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|  10-13-2025, 02:45 PM | #4 | |
| Grand Sorcerer            Posts: 6,267 Karma: 16544702 Join Date: Sep 2009 Location: UK Device: ClaraHD, Forma, Libra2, Clara2E, LibraCol, PBTouchHD3 | Quote: 
 The downloaded kepub is has filename & extension Code: h-p-lovecraft_the-case-of-charles-dexter-ward.kepub.epub Code: h-p-lovecraft_the-case-of-charles-dexter-ward.kepub | |
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|  10-13-2025, 04:21 PM | #5 | 
| Junior Member  Posts: 6 Karma: 10 Join Date: Sep 2025 Device: Kobo Clara BW | 
			
			I have some follow-up questions. On my Kobo, if I look at the file extension, it shows as kepub.epub. When I look at my Calibre library, I see only kepub. Since it appears that Calibre will treat the kepub.epub file extension as epub, what happens when I convert that kepub to an epub or kepub? I'm looking at the results in the viewer, and they still look okay. But I'm expecting something to not work right. Is the best practice now if I download a file with a kepub.epub extension to rename it? What would have to change in Calibre to treat the extension kepub.epub as a kepub? | 
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|  10-13-2025, 04:39 PM | #6 | |
| Resident Curmudgeon            Posts: 80,727 Karma: 150249619 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3 | Quote: 
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|  10-13-2025, 05:07 PM | #7 | 
| Grand Sorcerer            Posts: 13,693 Karma: 79983758 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour | 
			
			The device driver handles the rename from .kepub to .kepub.epub when the book is transferred to the Kobo.  The use of a single extension to identify ebook type is just how it is and I really doubt kovid would ever consider a change Sent from my TB350FU using Tapatalk | 
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|  10-13-2025, 06:39 PM | #8 | 
| Well trained by Cats            Posts: 31,249 Karma: 61360164 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A | 
			
			Calibre can view either. KEPB just has additional markup that Calibre ignores.
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|  10-21-2025, 08:25 AM | #9 | |
| Resident Curmudgeon            Posts: 80,727 Karma: 150249619 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3 | Quote: 
 Best to try to find the eBooks you want in the library right here at MR. | |
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|  10-21-2025, 08:31 PM | #10 | |
| Bibliophagist            Posts: 48,088 Karma: 174315300 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos | Quote: 
 
 Yes, very few apps and ereaders will display Standard eBook's Advanced coding well. Oddly the ePub3 renderer on Kobo ereaders does render them well. Ditto for Thorium and Sigil. Perhaps you might want to re-read the warning? The one that reads: "Advanced epub—An advanced format that uses the latest technology not yet fully supported by most ereaders". | |
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|  10-22-2025, 05:01 AM | #11 | |
| Resident Curmudgeon            Posts: 80,727 Karma: 150249619 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3 | Quote: 
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|  10-22-2025, 03:33 PM | #12 | 
| Bibliophagist            Posts: 48,088 Karma: 174315300 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos | 
			
			Jon, haven't you been slapped down enough times over your claims that an ePub MUST display properly with old versions of RMSDK? For me, RMSDK is there simply for the times I send library books using ADEPT DRM, otherwise, I use the ePub3 renderer. And I would appreciate that when you claim an ePub can properly display only using ePub2 supported by old RMSDK versions, that you would post the code needed. As in discussions where you have claimed that displaying a specialized item can be done in RMSDK supported ePub2 without any willingness to port your code despite being asked for that code. | 
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|  10-22-2025, 04:56 PM | #13 | |
| Wizard            Posts: 1,291 Karma: 1428263 Join Date: Dec 2016 Location: Goiânia - Brazil Device: iPad, Kindle Paperwhite, Kindle Oasis | Quote: 
 --- Edit: The linked book, for example, passes EPUBCheck. It does use the obsolete "epub:type='ordinal'", but that doesn't make it fail. It also uses CSS namespaces, but I don't think this is a problem for recent renderers. The rest is just pretty standard: no Math, no JS, just standard and custom epub:type's. Last edited by thiago.eec; 10-22-2025 at 05:13 PM. Reason: Add some info | |
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|  10-22-2025, 06:32 PM | #14 | |
| Resident Curmudgeon            Posts: 80,727 Karma: 150249619 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3 | Quote: 
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|  10-22-2025, 06:36 PM | #15 | |
| Resident Curmudgeon            Posts: 80,727 Karma: 150249619 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3 | Quote: 
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