Jagged fonts in png within converted book

jsibley · 04-16-2023, 11:41 AM

Hello,

I have converted a book (am I allowed to say from where, if that might be a factor) and tables in the book are png files when I explode the book that have text and lines that are jagged.

Probably not surprisingly, if I convert the EPUB to a pdf, I have the same jagged text and lines.

Is this something that I can potentially do something about? In fairness, the tables seem to have the same issue with the original file (pre-calibre) in the appropriate e-reader app.

kovidgoyal · 04-16-2023, 11:44 AM

No not in calibre. calibre has no facilities to improve source images.

Foozle · 04-17-2023, 07:36 PM

Sounds like the original source files are low quality. The images would already have to be in high quality format, there's no way to change it without getting a better image of what you need.

Karellen · 04-17-2023, 07:41 PM

Better option would be to recreate the tables using <table> code.

04-16-2023, 11:41 AM	#1
jsibley Junior Member Posts: 4 Karma: 10 Join Date: Mar 2020 Device: Kindle	Jagged fonts in png within converted book Hello, I have converted a book (am I allowed to say from where, if that might be a factor) and tables in the book are png files when I explode the book that have text and lines that are jagged. Probably not surprisingly, if I convert the EPUB to a pdf, I have the same jagged text and lines. Is this something that I can potentially do something about? In fairness, the tables seem to have the same issue with the original file (pre-calibre) in the appropriate e-reader app.

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04-16-2023, 11:44 AM	#2
kovidgoyal creator of calibre Posts: 45,330 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	No not in calibre. calibre has no facilities to improve source images.

04-17-2023, 07:36 PM	#3
Foozle Connoisseur Posts: 62 Karma: 221034 Join Date: May 2021 Device: None	Sounds like the original source files are low quality. The images would already have to be in high quality format, there's no way to change it without getting a better image of what you need.

04-17-2023, 07:41 PM	#4
Karellen Wizard Posts: 1,611 Karma: 9500498 Join Date: Sep 2021 Location: Australia Device: Kobo Libra 2	Better option would be to recreate the tables using <table> code.

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