04-08-2024, 07:10 PM | #16 |
Enthusiast
Posts: 41
Karma: 10
Join Date: Dec 2013
Device: Kindle/Android
|
Another tidbit, the to EPUB conversion has a unique option not in the AZW3 output.
"Shrink images larger than" on the EPUB output settings page. You can absolutely use this to drastically shrink oversized images. I can't think why this option is missing from the AZW3 output? |
04-08-2024, 09:03 PM | #17 |
creator of calibre
Posts: 44,417
Karma: 23977332
Join Date: Oct 2006
Location: Mumbai, India
Device: Various
|
Polish books make no destructive changes you can run them on all formats repeatedly. That's part of their core goal. And there is no max image size in AZW3 because there is far less diversity in readers for that format and all o fthem support large images fine.
|
04-09-2024, 11:16 AM | #18 | |
Enthusiast
Posts: 41
Karma: 10
Join Date: Dec 2013
Device: Kindle/Android
|
Quote:
The Paperwhite I'm copying to is only 1072x1448. If I could limit the images on AZW3 to a maximum of 1072x1448 that would cut that image down to 1/9th the pixels with no loss in readability (no text in images). |
|
04-09-2024, 12:45 PM | #19 |
creator of calibre
Posts: 44,417
Karma: 23977332
Join Date: Oct 2006
Location: Mumbai, India
Device: Various
|
limited? Last I checked kindles had GB plus storage and if you put too many books ona kindle its indexer falls over anyway.
|
04-12-2024, 11:09 AM | #20 | |
Enthusiast
Posts: 41
Karma: 10
Join Date: Dec 2013
Device: Kindle/Android
|
Quote:
The issue is mostly Light Novels for example "Ascendance of a Bookworm" series which are about 34 medium length novels, around 300 pages each. A Kindle could easily handle hundreds of them except for the artwork which balloons a few megabyte book up to 30 to 40 megabytes each. Just that series alone will fill a 2GB Kindle after accounting for overhead and Amazon bloat. Try to add a few Light Novel series, and you'd run out of space on a 4GB or even the latest 8GB models. The artwork in those Light Novels is amazingly bloated for reading on a 6" greyscale display! |
|
04-23-2024, 04:55 AM | #21 |
Well trained by Cats
Posts: 30,412
Karma: 58055868
Join Date: Aug 2009
Location: The Central Coast of California
Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A
|
Calibre Polish has the option to losslessly compress images
Polish can be applied to a group (selection) of books with just a few clicks. |
Tags |
batch, compress, images |
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Compress images losslessly | jlynton | Calibre | 9 | 04-21-2021 04:16 PM |
How to not compress jpeg | Arrandir | Sigil | 5 | 04-11-2020 06:43 PM |
Batch mode to compress images | pmichelazzo | Editor | 2 | 06-17-2018 04:33 AM |
Bug: "Polish books" fails to compress images other than cover | webmaven | Calibre | 2 | 08-19-2017 05:35 AM |
No glyph available error and cannot compress png images | crouton | Editor | 1 | 01-06-2017 10:02 PM |