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Reload this Page Edit jars on 5.6.1.0.5 (margins, font sizes) -- and non-jb fonthack

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Old 03-21-2016, 01:26 PM   #211
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@byzkarl: Did you restart/reboot your Kindle after editing FONT_RAMP file?
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Old 04-19-2016, 06:09 AM   #212
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Will this also work on the K3?
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Old 04-19-2016, 10:03 AM   #213
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@topquark: Will what work on K3?
1) FONT_RAMP thing >>> No, it's firmware 5.x.x series only.
2) Reducing left and right margin >>> IIRC it's easier to do that on K3 than on any newer Kindle (you edit a value in /system/reader.pref file that is just a plain text file and accessible without needing the jailbreak

3) Changing those 8 predefined font sizes in Aa menu: Possible with jailbreak by editing different set of jar files.

See this post for hack/solution for 2) and 3): https://www.mobileread.com/forums/sho...&postcount=137

You should probably read at least last couple of pages of that thread, focusing on posts by @ihor. And also read the included "readme"/instruction to check which firmware build for Kindle 3 are supported and tested. Especially now that Kindle 3 recently got some small update (for March 22 server side changes) to be able to continue using Kindle Store and stuff... because there is possibility that those jar files that hack uses were replaced and/or java code was re-obfuscated.

Having working SSH setup (USBNetworking) and some basic knowledge of Linux terminal command would be nice, in case you just go ahead with installing the hack and as result Kindle gets soft-bricked you could manually delete modified jar files... that should fix things.
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Old 04-20-2016, 11:47 PM   #214
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Great. Thanks a lot. I'll look at that link.
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Old 07-07-2016, 06:09 AM   #215
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Any updates on this, particularly the margins hack?
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Old 07-07-2016, 01:27 PM   #216
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@kleinjar: AFAIK, it's still doable manually. The instructions are still mostly accurate for everything pertaining to margins, it's the font size stuff which changed significantly.

EDIT: Said instructions are from @kaznelson, somewhere after his attachment in the JBPatch thread. I vaguely remember someone putting all of it together in a new thread recently-ish, but I might have dreamed that .
Last edited by NiLuJe; 07-07-2016 at 01:30 PM.
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Old 09-06-2016, 11:52 AM   #217
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The font size doesn't work in 5.8.3 Or did I do it wrongly?
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Old 09-06-2016, 12:08 PM   #218
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Quote:
Originally Posted by Qubezo View Post
The font size doesn't work in 5.8.3 Or did I do it wrongly?
Probably too recent a firmware version.
Please mention your device model by our name for it (there are 3 or more 'Kindle Basic' devices).

Does FONT_RAMP still work in that firmware version?
(FONT_RAMP: ^^ read up ^^)
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Old 09-06-2016, 12:45 PM   #219
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Quote:
Originally Posted by Qubezo View Post
The font size doesn't work in 5.8.3 Or did I do it wrongly?
Is there new Kindle firmware out or did you mean 5.8.2?
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Old 09-06-2016, 08:46 PM   #220
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Quote:
Originally Posted by knc1 View Post
Probably too recent a firmware version.
Please mention your device model by our name for it (there are 3 or more 'Kindle Basic' devices).

Does FONT_RAMP still work in that firmware version?
(FONT_RAMP: ^^ read up ^^)
Quote:
Originally Posted by jhowell View Post
Is there new Kindle firmware out or did you mean 5.8.2?
Sorry guys. My bad. It does work for AZW3 but not in MOBI format. I should have read the previous pages. I can confirm that this trick still works in 5.8.2, PW3. Thanks.
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Old 01-08-2017, 09:37 AM   #221
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Update:
It still works on 5.8.7
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Old 04-16-2017, 01:38 AM   #222
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font_ramp works on 5.8.9 as well
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Old 04-16-2017, 08:47 AM   #223
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Quote:
Originally Posted by Qubezo View Post
Sorry guys. My bad. It does work for AZW3 but not in MOBI format. I should have read the previous pages. I can confirm that this trick still works in 5.8.2, PW3. Thanks.
Quote:
Originally Posted by Analogus View Post
Update:
It still works on 5.8.7
Quote:
Originally Posted by odamizu View Post
font_ramp works on 5.8.9 as well
Thanks.

No word (yet) on if they have enabled the "CONTENT_FONT_RAMP" feature.
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Old 04-16-2017, 09:58 PM   #224
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Quote:
Originally Posted by knc1 View Post
Thanks.

No word (yet) on if they have enabled the "CONTENT_FONT_RAMP" feature.
They haven't, unfortunately.

Shari
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Old 06-13-2017, 08:35 PM   #225
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Originally Posted by PRS-T2 View Post
##### Default values are: #################
7.13 7.81 8.49 9.17 10.53 12.56 16.98 29.2

This translates to height in px:
19.2; 21.1; 23; 24.7; 28.6; 33.9; 45.8; 78.9

How? FONT_RAMP value * 2.7 = height in px

How many px per mm are shown on 300dpi PW3/Voyage:

300/25,4 = 11,81px/mm
Height in px / 11,81 = height in mm

Example:

29.2*2,7=78.9
78.9/11.81=6.68mm
I believe, the sizes are in typography points (pt). 1pt is 1/72 of an inch.
1 inch is 25.4mm, so, 1pt is 25.4 / 72 = 0.352778mm

To translate the sizes in pixels (px) for Kindle Oasis (or Voyage) with 300dpi screens, calculation would be something like this:

Smallest font: 7.13 * 300 / 72 = 29.7 px
Default (4th) font: 9.17 * 300 / 72 = 38.2 px
Biggest font: 29.2 * 300 / 72 = 125.14 px

In millimeters this would be for the biggest font: 29.2 * 0.352778 = 10.23mm
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