Cutting off bottom of letters in bottom line

SteveK · 08-17-2013, 05:55 PM

I have a Kobo Glo which frequently cuts off the bottoms of some characters on the last line on a "page". Although normally it's only a portion of the below the line letters (so that yet looks like vet, etc), I have seen at least one instance where it essentially cut off at about the halfway point on the line, so that half of each character was on the bottom of one page and half on the top of the next page. Needless to say, it wasn't easy to read either line. Any ideas on how I can remedy this? I can change line spacing, etc, but obviously that might mean only that it affects a different line in the text on each page.

I haven't seen where Kobo allows you to set the bottom margin, which might take care of the problem. It's not usually a major problem, but obviously is an annoyance as I shouldn't have to guess the words on the bottom line.

Thanks in advance for any recommendations.

SteveK

PeterT · 08-17-2013, 06:19 PM

SteveK: what f/w level are you using?

SteveK · 08-17-2013, 06:44 PM

Peter- My Kobo is at work, but I'll try to remember to check next week. I am fairly certain it is NOT the latest firmware, as I don't remember any recent updates. Might a more recent firmware version help? If so, how can I "force" an upgrade?

Thanks.
SteveK

davidfor · 08-17-2013, 08:59 PM

The only times I have seen this, it was a book with an embedded font. When I selected a font other than "Document defaults', everything was OK.

Ripplinger · 08-17-2013, 09:15 PM

I've seen this happen before, where the text on the top line has the top of the letters cut off and the bottom cuts off the letters that extend below the line of type. But I can't really remember what caused it

... I *think* it happened when I upgraded the firmware to 2.6.1. But try changing the font style and size and see if that doesn't fix the problem.

taming · 08-18-2013, 05:21 AM

The descenders are cut off using Kobo Nickel on 2.81. That font has been a mess since day 1--which amazes me since Kobo has made a big deal about this being a custom font developed for Kobo devices.

John F · 08-18-2013, 06:21 AM

I see this off and on. I think I see it more when I wake up from sleep. I'm using calibre to transfer and generate kepubs. I'm on 2.6.1b. I'm also using a side loaded font.

Ripplinger · 08-28-2013, 12:38 PM

I stumbled on this again today in checking out a kepub, and apparently it's not just the Kobo Nickel font. Here's an image with Caecelia font, and it seems to happen only with kepubs. I can't remember seeing it in an epub where the page will appear this way when go you reopen the book, but not all pages, I really don't know why some and not all pages. Once you turn the page, the chopped off text goes back to normal, even if you back up to the previous chopped page, that will display correctly.

Edit: I'm on firmware 2.5.1 btw.

buffaloseven · 08-29-2013, 12:27 PM

I've been having this problem on several books lately; primarly when text is justified.

SteveK · 08-29-2013, 11:20 PM

Davidfor - your suggestion to use any font other than document default seems to have solved the problem, as I haven't seen any more lines cut off when I stopped using document defaults. I would have thought that document defaults would have caused fewer problems, but I've had no further problems since selecting another font.

Thanks for the suggestion!

SteveK

davidfor · 08-30-2013, 12:01 AM

"Document default" means to use the fonts that embedded in the book. Selecting one of the one of the other fonts, overrides this. The times I have seen this problem, the book embedded a Charis font. From discussions around here, there are versions of this that have been fiddled with to use different font metrics. I think some of these may result in the renderer getting the position of the text wrong.

As a simple example of what I mean, have a look at where the title of the book is displayed when you use different fonts. With "Georgia", the title is centred with the home and other buttons. With "Gothic" it is displayed noticeably lower. The exact positioning of the letters in a line is at least partly defined by something in a font. I think that if you extracted the embedded font and added it to the device, you would see something similar.

08-17-2013, 05:55 PM	#1
SteveK Addict Posts: 272 Karma: 1017902 Join Date: Nov 2008 Device: Kindle PW, PW2, Kindle3, Kobo Glo, tablets, phone	Cutting off bottom of letters in bottom line I have a Kobo Glo which frequently cuts off the bottoms of some characters on the last line on a "page". Although normally it's only a portion of the below the line letters (so that yet looks like vet, etc), I have seen at least one instance where it essentially cut off at about the halfway point on the line, so that half of each character was on the bottom of one page and half on the top of the next page. Needless to say, it wasn't easy to read either line. Any ideas on how I can remedy this? I can change line spacing, etc, but obviously that might mean only that it affects a different line in the text on each page. I haven't seen where Kobo allows you to set the bottom margin, which might take care of the problem. It's not usually a major problem, but obviously is an annoyance as I shouldn't have to guess the words on the bottom line. Thanks in advance for any recommendations. SteveK

08-28-2013, 12:38 PM	#8
Ripplinger 350 Hoarder Posts: 3,574 Karma: 8281267 Join Date: Dec 2010 Location: Midwest USA Device: Sony PRS-350, Kobo Glo & Glo HD, PW2	I stumbled on this again today in checking out a kepub, and apparently it's not just the Kobo Nickel font. Here's an image with Caecelia font, and it seems to happen only with kepubs. I can't remember seeing it in an epub where the page will appear this way when go you reopen the book, but not all pages, I really don't know why some and not all pages. Once you turn the page, the chopped off text goes back to normal, even if you back up to the previous chopped page, that will display correctly. Edit: I'm on firmware 2.5.1 btw. Attached Thumbnails

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08-17-2013, 06:19 PM	#2
PeterT Grand Sorcerer Posts: 13,340 Karma: 78876004 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour	SteveK: what f/w level are you using?

08-17-2013, 06:44 PM	#3
SteveK Addict Posts: 272 Karma: 1017902 Join Date: Nov 2008 Device: Kindle PW, PW2, Kindle3, Kobo Glo, tablets, phone	Peter- My Kobo is at work, but I'll try to remember to check next week. I am fairly certain it is NOT the latest firmware, as I don't remember any recent updates. Might a more recent firmware version help? If so, how can I "force" an upgrade? Thanks. SteveK

08-17-2013, 08:59 PM	#4
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303824 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	The only times I have seen this, it was a book with an embedded font. When I selected a font other than "Document defaults', everything was OK.

08-17-2013, 09:15 PM	#5
Ripplinger 350 Hoarder Posts: 3,574 Karma: 8281267 Join Date: Dec 2010 Location: Midwest USA Device: Sony PRS-350, Kobo Glo & Glo HD, PW2	I've seen this happen before, where the text on the top line has the top of the letters cut off and the bottom cuts off the letters that extend below the line of type. But I can't really remember what caused it ... I think it happened when I upgraded the firmware to 2.6.1. But try changing the font style and size and see if that doesn't fix the problem.

08-18-2013, 05:21 AM	#6
taming Trying for calm & polite Posts: 4,012 Karma: 9455193 Join Date: May 2010 Location: Mostly in Canada Device: kobo original, WiFI, Touch, Glo, and Aura	The descenders are cut off using Kobo Nickel on 2.81. That font has been a mess since day 1--which amazes me since Kobo has made a big deal about this being a custom font developed for Kobo devices.

08-18-2013, 06:21 AM	#7
John F Grand Sorcerer Posts: 7,877 Karma: 70186493 Join Date: Feb 2009 Device: Kobo Clara 2E	I see this off and on. I think I see it more when I wake up from sleep. I'm using calibre to transfer and generate kepubs. I'm on 2.6.1b. I'm also using a side loaded font.

08-29-2013, 12:27 PM	#9
buffaloseven Watching the Sky Posts: 239 Karma: 634112 Join Date: Sep 2012 Location: Winnipeg, MB Device: Kobo Aura	I've been having this problem on several books lately; primarly when text is justified.

08-29-2013, 11:20 PM	#10
SteveK Addict Posts: 272 Karma: 1017902 Join Date: Nov 2008 Device: Kindle PW, PW2, Kindle3, Kobo Glo, tablets, phone	Davidfor - your suggestion to use any font other than document default seems to have solved the problem, as I haven't seen any more lines cut off when I stopped using document defaults. I would have thought that document defaults would have caused fewer problems, but I've had no further problems since selecting another font. Thanks for the suggestion! SteveK

08-30-2013, 12:01 AM	#11
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303824 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	"Document default" means to use the fonts that embedded in the book. Selecting one of the one of the other fonts, overrides this. The times I have seen this problem, the book embedded a Charis font. From discussions around here, there are versions of this that have been fiddled with to use different font metrics. I think some of these may result in the renderer getting the position of the text wrong. As a simple example of what I mean, have a look at where the title of the book is displayed when you use different fonts. With "Georgia", the title is centred with the home and other buttons. With "Gothic" it is displayed noticeably lower. The exact positioning of the letters in a line is at least partly defined by something in a font. I think that if you extracted the embedded font and added it to the device, you would see something similar.

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