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Old 12-02-2019, 03:22 PM   #3151
NiLuJe
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I'm unclear as to why "delete file" isn't practical in your case, unless you meant that the sd card is your *primary* storage location for those books (as in, they're not copied from a full library hosted somewhere else, which sounds a bit insane, but, hey, to each their own ).

And, no, no top status bar on PDF, as that's a CRe feature .
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Old 12-06-2019, 11:06 AM   #3152
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that's exactly what I do, Niluje. But I have back-ups
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Old 12-07-2019, 03:47 PM   #3153
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Hi guys,

Installed on my Aura H20 ed 2 following:

- KFMon
- Koreader 2019.11

But Koreader isn't able to start:

Quote:
[FBInk] Detected a Kobo Aura H2O² (374 => Snow @ Mark 6

It's a scroll... It's a codex... It's KOReader!
[*] Current time: 12/07/19-20:20:03[*] Version: v2019.11

ffi.load: SDL2
ffi.load (warning): libSDL2.so: cannot open shared object file: No such file or directory
ffi.load: libSDL2-2.0.so
ffi.load (warning): libSDL2-2.0.so: cannot open shared object file: No such file or directory
ffi.load: libSDL2-2.0.so.0
ffi.load (warning): libSDL2-2.0.so.0: cannot open shared object file: No such file or directory
SDL2 not loaded: ./setupkoenv.lua:27: Not able to load dynamic library: libSDL2-2.0.so.0
ffi.load: blitbuffer
Any hint is welcome....
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Old 12-07-2019, 06:29 PM   #3154
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Helpful reminder: don't cross-post, it's more likely to get you ignored that anything else.

(Also, it's highly frowned upon in general).

xref: https://www.mobileread.com/forums/sh...&postcount=204

Which, bonus points, happened to have an actually useful log excerpt, unlike this one .
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Old 01-11-2020, 02:09 AM   #3155
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another pdf problem not encountered before: I OCR'd the pdf myself with Adobe Acrobat DC2019 (60 MB, with pictures). The pages are too wide to read them even in landscape, so I switched to text reflow. Every 20 page or so a paragraph's font turns minuscule, and sometimes even lines are mixed up. Could this be due to low RAM or processor of my Kobo? I'm on KoReader 2019.12 - screenshots
Spoiler:







Last edited by serdar0020; 01-11-2020 at 02:13 AM.
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Old 01-11-2020, 06:05 AM   #3156
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That's definitely a curious effect, but the cause seems fairly straightforward. Due to the way the text lines up perfectly the algorithm seems to have misinterpreted it as two columns. By default it scans the middle third of the page for column gaps, and within that zone it seems to have found some.

If you're already using tools on your computer it's more expedient to just throw https://www.willus.com/k2pdfopt/help/overview.shtml into the mix. The same program provides functionality for KOReader, but by using the GUI or the command line you can tailor it in much more detail and much faster. (Use max columns: 1.)
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Old 01-12-2020, 02:39 AM   #3157
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edit: the column is gone, but the minuscule text remains

Spoiler:









after running my entire 573 pp. pdf through it, the processed output pdf is now 169 MB, 1460 pp. This is not what I want for my book archive. Rather a perfectly OCR'd pdf, book layout, 1 column, correct font sizes, that is faithfully transmitted in KOReader reflow. K2pdfopt is good if you want to quickly read a text on your reader and then delete it. But thanks for the tip

Last edited by serdar0020; 01-12-2020 at 03:26 AM.
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Old 01-12-2020, 01:55 PM   #3158
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If you select native PDF output it might be smaller, which may also load faster on a device.

I'm not really sure what the deal might be with the small text. Maybe @NiLuJe knows?
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Old 01-12-2020, 05:35 PM   #3159
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No idea, I kind of have a hate/hate relationship with PDF ^^.
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Old 01-12-2020, 11:53 PM   #3160
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I ran the two pages through AbbyFineReader12 and now it's ok in K2pdfopt.
Spoiler:






my only problem is, AbbyFinereader compresses the pdf too much (I think it's MRC compression) and then my Kobo has trouble opening the file, I've posted something about it earlier.

edit: I've been experimenting a bit more with the OCR functions of Abby and K2pdfopt, but I couldn't manage to get a proper reflow text of the book on my Kobo

Last edited by serdar0020; 01-13-2020 at 12:34 AM.
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Old 01-13-2020, 07:28 AM   #3161
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I suspect the small text might indicate that k2pdfopt interprets that block as an image. But I don't see an obvious reason for it like with the columns. A lot of noise/speckling might cause that, for example, but there is none. There's some minor warping but nothing that seems like it should be problematic. Nevertheless it might be worthwhile to quickly try the autostraighten option in k2pdfopt.
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Old 01-14-2020, 01:12 AM   #3162
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auto-straighten didn't help either, unfortunately
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Old 01-14-2020, 04:48 PM   #3163
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Since October or so the update feature in KOReader (on Kobo Aura One with KSM) no longer works for me. Whenever I try to update, I get "Update information unavailable on XX channel" (or rather the Dutch equivalent of that). I just dumped the latest version of KOReader in .adds/KOReader, but the problem persists.
Any ideas how to solve that?

Thanks a lot in advance, and thanks for a wonderful reader!

I can't post a reply, so let me try here:

Before updating manually, no channel/server combination worked - trying from many different WiFi hotspots. Nickel updated without problems.
After manually updating I had tried both channels, but only the vislab server, which didn't work.
Both links you give are intermittently accessible - sometimes I get there; sometimes I get "server not found". (You call them 'mirror', but the visual lay-out is not the same, BTW.)
With ota.koreader.rocks I got somewhere - the update was consistently offered, but then failed, with first a three-way option (retry, delete temporal files, keep temporal files), and upon retrying a two-way offer (keep or delete temporal files).
With koreader.ak-team.com I finally was able to update - though it took a > 15 min zsync delta computation.

Thanks!

P.S.: Almost 100% of the attempts lead to a "torn screen", a triangular white area, often covering the pop-up window with the failure message/update offer.

Last edited by Biep; 01-15-2020 at 11:26 AM.
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Old 01-14-2020, 05:03 PM   #3164
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@Biep: On which channel, and on which server?

Can you actually access any of them from the same network? (master: http://ota.koreader.rocks/ // mirror: http://koreader.ak-team.com/)
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Old 01-15-2020, 11:28 AM   #3165
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See above.

For some reason I kept getting "Cannot post message because you have logged in since accessing the page" or something along those lines. I now find I can post a very short message, and then edit it.
@NiLuJe - I answered you below my original message above.

Last edited by Biep; 01-15-2020 at 11:30 AM. Reason: To get my message in.
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