LCP DRM - Extracting Files

[Falkor]

Originally Posted by DNSB

Oddly, I haven't seen issues with font weight settings when the font is correctly structured and named.

For me it doesn't even work with the included fonts. With the RMSDK renderer it worked just fine with any font – until they broke it in the latest update. It's not storing the setting correctly in the config file anymore..

As for hyperlinks in ePubs? Considering the limitations of the current browser, not all that surprising.

With Epub being based on html and css and most renderering engines being based on actual web browsers, this really should work. IMO it's a little concerning that features as basic as this are broken.
Hyperlinks certainly are commonly used – a great percentage of my epubs have a table of contents with hyperlinks...

[DNSB]

Rather odd, I just checked 32 epubs with HTML ToCs. When the hyperlink was correctly structured and styled, it worked though the popup ToC is easier since you can pop it up from anywhere. Testing hyperlinks to external sites such as when an author puts in a Bookbub link using a image worked to connect to the site. The limitation here for the eInk devices is that the web browser is pretty much an antique and many web pages don't even want to talk to it. Using the Kobo Desktop app or the iOS and Android apps does not have this issue since a more modern browser is used.

As for the font weight? My experience is that it works. There is the issue that some people seem hung up on in that the font used for the weight setting is not the current font but that is a cosmetic issue and does not affect the reading experience.

readingFontWeight\ChareInk6=0.61
readingFontWeight\IBMPlexSerif=0.71
readingFontWeight\Domitian=0.69

[Falkor]

Originally Posted by DNSB

As for the font weight? My experience is that it works. There is the issue that some people seem hung up on in that the font used for the weight setting is not the current font but that is a cosmetic issue and does not affect the reading experience.

Not for me.
The left side of the attached picture shows RMSDK, the right is the Shine 5's default renderer.
Both using the same setting.

readingFontWeight\Bitter=0.8

But we're going way off topic here. Maybe we should move the discussion to the 5.x firmwae thread?

[JSWolf]

Does anyone have a place I can download a free LCP 2.0 infected eBook? Thanks.

[PeterT]

I've no idea what version LCP their samples use but see https://www.edrlab.org/projects/read...liant-devices/

Sent from my Pixel 7a using Tapatalk

[JSWolf]

Originally Posted by PeterT

I've no idea what version LCP their samples use but see https://www.edrlab.org/projects/read...liant-devices/

Sent from my Pixel 7a using Tapatalk

Thanks. I did try the T. S. Elliot eBook to test DeDRM with LCP and it's 1.0. I may have another source for removing LCP DRM. But I need to know it can be done with the LCP 2.0 version.

So I'm still looking for LCP 2.0 infected eBooks.

Actually, if anyone has an LCP 2.0 infected eBook and the key, then you can do the testing for me.

[belle39234]

I have some lcp protected ebooks on which dedrm doesn't work but I believe they might be LCP 2.5. how can I tell which drm exactly they have?

[DNSB]

Originally Posted by belle39234

I have some lcp protected ebooks on which dedrm doesn't work but I believe they might be LCP 2.5. how can I tell which drm exactly they have?

Unless you have saved the LCP DRM removal module from the DeDRM package before it was removed and injected that module back into the newer package replacing the dummy stub, you do not have the ability to remove LCP DRM. The module was removed after a DCMA complaint.

[belle39234]

I do have the old, now removed, package yes. it used to work before the publisher started using a newer version of LCP. according to them, they are still using LCP, just a newer version.

[JSWolf]

Originally Posted by belle39234

I have some lcp protected ebooks on which dedrm doesn't work but I believe they might be LCP 2.5. how can I tell which drm exactly they have?

Would you please try this website to see if the DRM can be removed? Thanks.

https://abustany.github.io/lcp-decrypt

[belle39234]

Originally Posted by JSWolf

Would you please try this website to see if the DRM can be removed? Thanks.

https://abustany.github.io/lcp-decrypt

this is the message I received
https://i.imgur.com/bvPL3Sc.png

[JSWolf]

Originally Posted by belle39234

this is the message I received
https://i.imgur.com/bvPL3Sc.png

Guess that lets that site out. Still no way to decrypt the latest LCP.

[belle39234]

unfortunately no. I've been looking and there's only epubor's conversion service. I tested it and it does work but it costs $20 a month. it's good to know it's possible to remove it though.

[pdurrant]

Originally Posted by belle39234

unfortunately no. I've been looking and there's only epubor's conversion service. I tested it and it does work but it costs $20 a month. it's good to know it's possible to remove it though.

I guess they must be outside the reach of a cease and desist letter. I'm sure they'll just be using the solution that (briefly) appeared in DeDRM.

[DNSB]

Originally Posted by pdurrant

I guess they must be outside the reach of a cease and desist letter. I'm sure they'll just be using the solution that (briefly) appeared in DeDRM.

Epubor will also decrypt the later LCP encryption that the DeDRM code does not handle. They likely have built on the work of others but they have extended the capabilities of the code.