02-18-2020, 03:34 AM | #1 |
Addict
Posts: 302
Karma: 1250000
Join Date: Jan 2011
Location: UK
Device: Kobo Libra, iPadAir2, PRS600, iPhone 6, iPod, Palm TX
|
Enlarge image
I have an epub with several images in the book content. The images are quite small and as they have text on them it is unreadable. Is there a way to enlarge the image so that it is readable?
|
02-18-2020, 04:19 AM | #2 |
Connoisseur
Posts: 70
Karma: 2119794
Join Date: Feb 2020
Location: Colorado
Device: Kobo Libra H20
|
I just got a Libra today and read that converting epub to kepub allows images to be resized.
I installed the needed plugin into Calibre to do the conversion (Kobo TouchExtended), but haven't yet figured out how to do the conversion. |
Advert | |
|
02-18-2020, 08:31 AM | #3 |
the rook, bossing Never.
Posts: 11,158
Karma: 85874891
Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper11
|
It's automatic with the default settings when you transfer a book.
I disabled the on-the-transfer kepub conversion in the settings as I prefer the more accurate page and font layout/rendering of epub. I have edited the CSS in some really old ebooks so that images are 2/3rds of screen width. Assuming an outer default centres the image and something outer has height: auto; Code:
.figscale { width: 1920 px; max-width: 67% } Code:
<div class="center"><img class="figscale" src="../images/00013.gif" alt="" title=""/> Last edited by Quoth; 02-18-2020 at 08:34 AM. Reason: tablet = no rescale. |
02-18-2020, 12:16 PM | #4 |
Guru
Posts: 731
Karma: 7000000
Join Date: Aug 2017
Location: Italy
Device: Kindle Paperwhite, Kobo Elipsa, Pocketbook Color PB633, Inkpad Color
|
I use epub when there no images or notes but when there are them I convert in Kepub because in that way I can use images enlargement and pop up notes.
|
02-18-2020, 01:58 PM | #5 |
the rook, bossing Never.
Posts: 11,158
Karma: 85874891
Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper11
|
It's a bit sad that at the beginning of mobi and epub that the there was no:
* popup notes. On most eReaders footnotes work badly. * Rotten support for other than Roman-Latin, though it was solved already on UNIX, VMS, DOS in 1980s, never mind Windows & Linux and Mac in 1990s. * Client side pure HTML image map (simple HTML, no java). * Separate zoom on images and text There is no reason why epub renderers can't do popup notes and zoom images like kepub, except most seem to be using Adobe (ADE?) and it's down the back of sofa income for them. |
Advert | |
|
02-18-2020, 03:42 PM | #6 |
Connoisseur
Posts: 70
Karma: 2119794
Join Date: Feb 2020
Location: Colorado
Device: Kobo Libra H20
|
Yes, I've since discovered that the plugin will automatically convert epub to kepub (shown as "Kobo epub" on the device).
One thing I'm having some trouble dealing with is font size, which appears different in every book I try. I adjust it in the settings, go to another book and it's often either very small or very large. I was hoping the reader would somehow save the reading settings for individual books. Then again, I'm new to the interface, so maybe I just don't know what I'm doing yet. |
02-18-2020, 08:55 PM | #7 | |
Grand Sorcerer
Posts: 24,907
Karma: 47303748
Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
|
Quote:
But, unfortunately, kepubs and epubs use a different font scaling. For any size chosen in an epub, the kepub will appear to be using a much smaller font size. If you are swapping between epubs and kepubs, it means you need to adjust the font size for each. I think there is a patch to fix it, but, I'm not sure. Edit - I should have said: It also could be that the font size is different for each book. There are a lot some badly constructed books out there that set the font size in strange ways. This can mean that each book will show text in different sizes when opened. Some are easy to fix, some not so easy. Sometimes it is a deliberate design, and sometimes it is the tool used to produce the ebook that causes it. Last edited by davidfor; 02-18-2020 at 08:58 PM. |
|
02-18-2020, 11:31 PM | #8 |
Grand Sorcerer
Posts: 10,129
Karma: 224760044
Join Date: Jan 2014
Location: Estonia
Device: Kobo Sage & Libra 2
|
Yes, there is a patch to make the kepub and epub font sizes match.
Of course, that doesn't fix bad formatting. Personally I fix the formatting myself in every book I buy, otherwise it would drive me mad. Different font sizes, huge line heights and indents, spaces between paragraphs, embedded body font (often not suitable for eink and barely legible), the list goes on... Much simpler to remove all those things in the beginning and enjoy your books in peace later than to gnash your teeth every time you open a new book. (Yes, I know many people are not particularly bothered by fluctuations in formatting, no matter how wild. But many others are and why force yourself to endure it when it's pretty easily fixed?) |
02-18-2020, 11:52 PM | #9 | |
Bibliophagist
Posts: 35,415
Karma: 145435140
Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Forma, Clara HD, Lenovo M8 FHD, Paperwhite 4, Tolino epos
|
Quote:
|
|
02-25-2020, 11:07 AM | #10 | |
Resident Curmudgeon
Posts: 73,983
Karma: 128903378
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
|
Quote:
I've seen cases where the CSS has over 100 unused classes. Why do the publishers toss in every class they've ever created? |
|
03-10-2020, 08:12 AM | #11 |
Member
Posts: 18
Karma: 18
Join Date: Dec 2008
Location: UK
Device: Kindle keyboard, Kindle Paperwhite 6th gen, Kindle Voyage, Kobo Libra
|
I have also been struggling with this recently and have just stumbled upon the solution in The Ultimate Kobo Tips & Tricks Thread.
In post #384 davidfor wrote: "Double tapping on the image should open the image in an separate image viewer which supports zoom and panning." Applicable only to kepubs. |
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Hacks kindle 3.4 Font size enlarge | dawniefitzgerald | Amazon Kindle | 0 | 10-05-2012 04:59 PM |
KindleGen - Enlarge pictures in lanscape orientation? | _Abahd_ | Kindle Formats | 0 | 09-17-2012 05:22 AM |
How to enlarge font size of mobi dictionary | redmayfair | General Discussions | 3 | 07-14-2012 05:07 AM |
Creating my custom recipes: enlarge image in blog post | cafedo | Recipes | 3 | 01-23-2011 08:16 AM |
Some trouble with PRS-500 (enlarge text and darker) | Jary | Sony Reader | 7 | 04-11-2007 03:43 PM |