/tech/ - Technology

I'm sure there's this one open source PDF-like format, can't find it now but I'm sure it exists

>>16623
>Who made .eupb
You mean epub ?
epub was developed by the International Digital Publishing Forum and is now maintained by W3
>it has DRM
Yes it unfortunately epub files can be cursed with the Digital Restrictions Monster
>so I assume it isn't open source
It's an open standard, it's not software so it doesn't have source-code
You are not forced to put restrictions on the EPUB files you are making, so it's still pretty good.

I don't know much about the technical side but if you were so unfortunate to have been defrauded into buying a digital book that was cursed, it's usually possible to strip off the curse so you can make the digital book your personal property, just like with any regular paper book. I hear that a software named Calibre can be augmented with plugins to uncurse your books

here is a guide to avoid the digital restrictions monster entirely:
https://www.defectivebydesign.org/guide/ebooks

PDF became an open format in 2008. There is also DJVU that is open since its release in 1998, sufficiently supported and technically superior in every way.
>>16626
I never had a device where epub scaled different to documents with a fixed layout. Because it's webshit, epub readers need to embed a whole web rendering engine. Most releases I encountered had an overcompressed jpeg as a cover.

>>16625
manifest

>>16626
Thanks, i was using this site to download free shit and it gave me in this format

That's what got me to wonder

https://b-ok.asia/s/?q=author%3Asarah+andersen&e=1&languages%5B%5D=english&order=year

It's pretty easy to use, libgen is confusing

I feel so bad for these free hosting sites, They give so much and still struggle >>16627


>Are you familiar with a high-risk merchant or do you process payments? Yes, I am.

They had some kind of banner like this on theirs

>>16627
Oh yeah I think I've heard of it
How does it mogg all other formats, I might just convert all the books to it

>>16627
Since you say djvu is better i started playing around with the pdf2djvu program, it's in the standard repositories of Linux distros. But there aren't any tutorials on how to use it properly. Can you tell me how to configure it to make small file sizes ? Or suggest a better program that runs on linux ?
I'm getting inconsistent results, converting pdf to djvu can shrink file sizes by about a factor of 6, but some times i get huge files too.

Most EPUB files are effectively open; DRM is optional

>>16629
>I'm getting inconsistent results, converting pdf to djvu can shrink file sizes by about a factor of 6, but some times i get huge files too.
That is to be expected. PDF either embeds a subset of postscript or a type of raster graphic. Postscript is a vector graphic, meaning it contains instructions on how to draw a page.
DJVU is made of several layers of different formats that compress scanned documents very efficiently (see http://djvu.sourceforge.net/ for more detail). It doesn't include vector graphics so pages render faster.
Where DJVU can inflate filesize is very simple vector graphics. Compare that of CSTR 54 in different formats:
<340K54.djvu
<132K54.pdf
<92K54.ps.gz

>>16631
It ate my tabs.
340K 54.djvu
132K 54.pdf
92K 54.ps.gz

>>16634
mex?

i've heard of .txt but what is that?

>>16637
Nta think they talking bout https://tug.org/

>>16634
The traditional document format is .dvi though.

>>16627
Isn't it only a subset of PDF that is open?

I hate every single eupb reader on windows
Gonna have to get Win 11 to use an android reader to read stuff

wht a dogshit platform

>>16623
kek you pulled that book cover from z-lib didnt you

>>17052
yes. and i still hate every windows book reader
i dunno how to enable android sideloading

win 11 was a scam

>>17098
you can install linux readers on windows https://learn.microsoft.com/en-us/windows/wsl/tutorials/gui-apps

>>16623
You mean these?

>>17651
oh nvm
I (ironically) read it wrong

Just use DJVU bro