Is It Possible To Convert Epub Files 40 MB And Above

[MrSlow&Steady]

So I am trying to convert several books that are above 40 MB. Sadly, I have not been able to convert them on Calibre. Is it actually possible to convert these files? Or no?

[lumpynose]

Can you put one up on a file sharing service? My computer has gobs of ram, so if it's a ram limitation we'll find out.

[MrSlow&Steady]

Originally Posted by lumpynose

Can you put one up on a file sharing service? My computer has gobs of ram, so if it's a ram limitation we'll find out.

This is my first time here so how do I do that? From what I explored there's lots of places to do that.

[kovidgoyal]

You can convert any size fo book in calibre as long as your computer has enough RAM. If you are on windows, install the 64bit version of calibre to make use of more RAM

[MrSlow&Steady]

Originally Posted by kovidgoyal

You can convert any size fo book in calibre as long as your computer has enough RAM. If you are on windows, install the 64bit version of calibre to make use of more RAM

By 64 bit you mean it has 64 MB right?

[kovidgoyal]

No I mean 64bit look for windows 64bit here https://calibre-ebook.com/download

and uninstall your existing calibre first (uninstalling wont affect your books/settings)

[lumpynose]

Originally Posted by MrSlow&Steady

This is my first time here so how do I do that? From what I explored there's lots of places to do that.

Upload it to a file sharing service then post in this thread the link that it gives you. I've used rapidgator.net in the past.

[MrSlow&Steady]

Originally Posted by kovidgoyal

No I mean 64bit look for windows 64bit here https://calibre-ebook.com/download

and uninstall your existing calibre first (uninstalling wont affect your books/settings)

I tried getting it converted for over three hours. It still didn't work.

[MrSlow&Steady]

Originally Posted by lumpynose

Upload it to a file sharing service then post in this thread the link that it gives you. I've used rapidgator.net in the past.

Would it be better if I gave you the link for you to download it personally? It's probably easier.

[lumpynose]

Originally Posted by MrSlow&Steady

Would it be better if I gave you the link for you to download it personally? It's probably easier.

Sure, whatever works for you.

[MrSlow&Steady]

Originally Posted by lumpynose

Sure, whatever works for you.

https://madeinchinajournal.com/books/

Download the books from "Made in China Yearbook Series" in epub format and try converting them without risking your laptop crashing.

[DNSB]

I took a look at the Dog Days, Made in China Yearbook 2018. The epub version which downloaded as "fixed.epub" is a fixed layout epub3 book. Looking at the structure of the ebook, every XHTML file is a single page. You might actually be better off using the PDF file as the starting point for your conversion.

When I started the conversion from EPUB to AZW3, the memory use started climbing and after 6 minutes had gone over 8GB with the CPU sitting around 22% (calibre and associated worker modules).

Conversion has been running for 16 minutes and has jumped from 1% to 47% where I suspect it will be sitting for quite a while going by previous conversions.

I've attached a couple of images. One is from Windows Task Manager, the other is from the epub as rendered on a Kobo Clara HD.

[MrSlow&Steady]

Originally Posted by DNSB

I took a look at the Dog Days, Made in China Yearbook 2018. The epub version which downloaded as "fixed.epub" is a fixed layout epub3 book. Looking at the structure of the ebook, every XHTML file is a single page. You might actually be better off using the PDF file as the starting point for your conversion.

When I started the conversion from EPUB to AZW3, the memory use started climbing and after 6 minutes had gone over 8GB with the CPU sitting around 22% (calibre and associated worker modules).

Conversion has been running for 16 minutes and has jumped from 1% to 47% where I suspect it will be sitting for quite a while going by previous conversions.

I've attached a couple of images. One is from Windows Task Manager, the other is from the epub as rendered on a Kobo Clara HD.

I gave up at this point. I don't want to put my laptop through any more stress. In the mean time tell me how it goes for you. I'll do the conversion from PDF path and see how it goes.

[DNSB]

Originally Posted by MrSlow&Steady

I gave up at this point. I don't want to put my laptop through any more stress. In the mean time tell me how it goes for you. I'll do the conversion from PDF path and see how it goes.

What format are you attempting to convert to?

[lumpynose]

Every word in it is absolutely positioned; e.g.

<span id="_idTextSpan4945" class="CharOverride-19" style="position:absolute;top:6584.25px;left:1986.07px;letter-spacing:-0.13px;">unprecedented </span>

So I don't think it's the size but all of that html stuff. Like DNSB said, another approach would more likely be fruitful. Maybe figure out a way to strip out the spans around each word, and then start over reformatting it.

I opened it in Sigil and its previewer displays it nicely. Likewise with Adobe Digital Editions. And Calibre's viewer. But the font size is fixed and small so it's hard to read.

I'm tempted to load it onto my kobo and see if it crashes it.