Force Recalculation of "Size (MB)"?

Jaws · 02-24-2020, 11:23 PM

Is there a way to force the "Size (MB)" column to recalculate? After resizing covers and polishing with compression turned on, the actual file size of an epub is less... but the "Size (MB)" column remains the same as it was upon import (whether from epub or when converted).

This isn't usually much of an issue, but some books that are heavily illustrated (e.g., cookbooks, science textbooks, and so on) can be problems for some readers if total size is over a certain limit. It would be nice to know if efforts to remove needless stuff and compress file size had been successful enough before saving to disk or transferring to a device.

There may be a way to do this, but I haven't found it...

Bookstooge · 02-25-2020, 06:18 AM

Would "polish" accomplish this?

kovidgoyal · 02-25-2020, 08:47 AM

Polishing should automatically update that column, since it basically re-adds the polished format to the library.

BetterRed · 02-25-2020, 06:00 PM

AFAIK the Polish Books tool will only work if you have an EPUB or AZW3.

Thinking wishfully, if I had Recalculate size 'button', when I downsize a comic or video in place, I wouldn't have to re-add (replace) the resultant cbz/mp4 to update the Size column. Ditto if I edit a DOCX in place using Word or Writer. See https://www.mobileread.com/forums/sh...&postcount=573

BR

BetterRed · 02-26-2020, 05:58 AM

You could also try the Quality Check (plugin)->Fix->Check and repair sizes tool, or see posts 573/4 i the Job Spy plugin thread ==>> Index of plugins

BR

Jaws · 02-26-2020, 11:08 PM

Unfortunately, polishing does not recalculate the size, or at least not accurately. For example, I removed a slew of publisher ads (total size of jpegs was > 200k), and the size didn't change; neither did it change after polishing. And more to the point, the actual saved size of the epub did have the lower size. So I suspect size calculations are somehow tied to import and/or conversion?

Will look at the Quality Check plugin as also suggested.

BetterRed · 02-26-2020, 11:48 PM

@Jaws - FYI a Refresh Book Sizes tool was added to the JobSpy plugin a couple of hours ago (version 1.0.174), give it a try. Any issues should be reported in the JS thread, see Index of plugins

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NB: you can add individual JS tools to the Favourites plugin, which is what I've done with this one.

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BR

Jaws · 03-02-2020, 09:06 PM

Ironically, the recent addition to JobSpy goes the opposite direction of what I want... and would run into difficult if there were both epub and mobi (or azw, or other imported-and-converted format) in the same book.

I want to know the smallest file size, and care only about the epub (which may matter if I've converted something from, say, .txt without a cover).

02-24-2020, 11:23 PM	#1
Jaws JCL Punch-Card Collector Posts: 43 Karma: 10 Join Date: Jun 2014 Location: Antarctica Device: Aggressively Device Independent	Force Recalculation of "Size (MB)"? Is there a way to force the "Size (MB)" column to recalculate? After resizing covers and polishing with compression turned on, the actual file size of an epub is less... but the "Size (MB)" column remains the same as it was upon import (whether from epub or when converted). This isn't usually much of an issue, but some books that are heavily illustrated (e.g., cookbooks, science textbooks, and so on) can be problems for some readers if total size is over a certain limit. It would be nice to know if efforts to remove needless stuff and compress file size had been successful enough before saving to disk or transferring to a device. There may be a way to do this, but I haven't found it...

02-25-2020, 06:00 PM	#4
BetterRed null operator (he/him) Posts: 20,575 Karma: 26954694 Join Date: Mar 2012 Location: Sydney Australia Device: none	AFAIK the Polish Books tool will only work if you have an EPUB or AZW3. Thinking wishfully, if I had Recalculate size 'button', when I downsize a comic or video in place, I wouldn't have to re-add (replace) the resultant cbz/mp4 to update the Size column. Ditto if I edit a DOCX in place using Word or Writer. See https://www.mobileread.com/forums/sh...&postcount=573 BR Last edited by BetterRed; 02-25-2020 at 06:09 PM. Reason: Add link

02-26-2020, 11:48 PM	#7
BetterRed null operator (he/him) Posts: 20,575 Karma: 26954694 Join Date: Mar 2012 Location: Sydney Australia Device: none	@Jaws - FYI a Refresh Book Sizes tool was added to the JobSpy plugin a couple of hours ago (version 1.0.174), give it a try. Any issues should be reported in the JS thread, see Index of plugins NB: you can add individual JS tools to the Favourites plugin, which is what I've done with this one. BR

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02-25-2020, 06:18 AM	#2
Bookstooge Guru Posts: 760 Karma: 2090886 Join Date: May 2019 Device: Kindle Oasis 1st Gen	Would "polish" accomplish this?

02-25-2020, 08:47 AM	#3
kovidgoyal creator of calibre Posts: 43,860 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Polishing should automatically update that column, since it basically re-adds the polished format to the library.

02-26-2020, 05:58 AM	#5
BetterRed null operator (he/him) Posts: 20,575 Karma: 26954694 Join Date: Mar 2012 Location: Sydney Australia Device: none	You could also try the Quality Check (plugin)->Fix->Check and repair sizes tool, or see posts 573/4 i the Job Spy plugin thread ==>> Index of plugins BR

02-26-2020, 11:08 PM	#6
Jaws JCL Punch-Card Collector Posts: 43 Karma: 10 Join Date: Jun 2014 Location: Antarctica Device: Aggressively Device Independent	Unfortunately, polishing does not recalculate the size, or at least not accurately. For example, I removed a slew of publisher ads (total size of jpegs was > 200k), and the size didn't change; neither did it change after polishing. And more to the point, the actual saved size of the epub did have the lower size. So I suspect size calculations are somehow tied to import and/or conversion? Will look at the Quality Check plugin as also suggested.

03-02-2020, 09:06 PM	#8
Jaws JCL Punch-Card Collector Posts: 43 Karma: 10 Join Date: Jun 2014 Location: Antarctica Device: Aggressively Device Independent	Ironically, the recent addition to JobSpy goes the opposite direction of what I want... and would run into difficult if there were both epub and mobi (or azw, or other imported-and-converted format) in the same book. I want to know the smallest file size, and care only about the epub (which may matter if I've converted something from, say, .txt without a cover).