[X] My Assistant

cypherguard pdf (which dlsite uses) is a bit more sophisticated than usual pdf encryption. I have yet to find any resources on how to decrypt it, best solution i could come up with was using screenshots, which sucks obviously.

Use dlsite viewer if available, otherwise screenshotting might be your only option for now.

This post has been edited by -terry-: Aug 13 2024, 20:48

I got the files extracted.
These were seemingly plain PDF files. "PDF document, version 1.7 (zip deflate encoded)". I could view them in xpdf normally.
The zip files the pdf's were in were annoying because they were using shift-jis encoded filenames, but I got past that hurdle as well.
They used AES256 protection, apparently; qpdf was able to unprotect them and then I used pdfimages as usual to grab the image files out. I sent links with the images back to them. pdftk-java apparently is too outdated to handle this form of protection.

This post has been edited by Moonlight Rambler: Aug 13 2024, 23:06

Debating whether I need the Knife for a download (possibly a series of downloads) on D◯M: I recently purchased a bunch of CG/comic sets from an artist who will release a retail version of a given work and then continually update it with subsequent additional bonuses from their Fanbox/Fantia. All the images are bog-standard JPG, but the version control slips in places making my inquiry necessary - the problem archive was updated to v5.1 in the D◯M desktop viewer, but the direct download link (unencrypted .zip) has only been updated to a v4.1 revision dating from four months earlier.

What's the simplest way about getting the currently player-locked images - download the standalone viewer, equip the Knife, and just read/copy the JPGs as if they were ebook pages? The work page on desktop (Firefox) sports a "view in App" button below the download button, but clicking it doesn't solicit me to download said App.

EDIT: Found a copy of Viewer and attempted the above, but got no additional output. Unsure if the Knife just doesn't work on Viewer 3.1.23, or if it doesn't work on just JPGs rather than epub extensions.

ALSO EDIT: Knife effectiveness rendered irrelevant due to finding the Viewer-downloaded files in C:\Users\[user]\Documents\MyD◯MBooksDocs\[account hash]\[SKU].zip...only to now be faced with having to batch-upsize them to the artist's original resolution and/or source such from their contemporary Fanbox/Fantia entries.

This post has been edited by Andy Waltfeld: Sep 6 2024, 03:49

I did not want to meddle with installing a viewer or a program with a source that's not widely used / known.

For dlst I ended up creating a python web scraping script for the online viewer of DLSite:
[pastebin.com] https://pastebin.com/Lbc6fPXU
(not well-tested but perhaps someone wants to use it)

DLsite will serve scrambled jpg, I don't think there's a way to get the real unscrambled source file on the web version? The script will extract the images as png but will have the jpg artifacts of the served images.

This post has been edited by mindfaQ: Sep 10 2024, 18:11

Anyone has the latest 64 bit dmmreader?

i'm late to the party, but none of the dlsite viewer installers posted here worked with the tool from the op
the one that worked for me was the one archived here: [web.archive.org] https://web.archive.org/web/20170102221711/...stallerPack.exe

Can confirm this works with viewerip. Thanks for this!!

Hey, I always seem to have the issue where the first page is completely jumbled, looking something like the attached image.

I'm using the DLSite viewer, by the way.

DMM and DLsite are highly protected
that is not easy to extract the images
they have improved many times to prevent

I got the files extracted.
These were seemingly plain PDF files. "PDF document, version 1.7 (zip deflate encoded)". I could view them in xpdf normally.
The zip files the pdf's were in were annoying because they were using shift-jis encoded filenames, but I got past that hurdle as well.
They used AES256 protection, apparently; qpdf was able to unprotect them and then I used pdfimages as usual to grab the image files out. I sent links with the images back to them. pdftk-java apparently is too outdated to handle this form of protection.

so complicated
I know they have improved again and again to prevent any extracting

Hey everyone, I'm really going crazy here. My tech illiterate brain has still been unable to figure out how to extract protected pdf files from dlsite. I tried using the dlsite viewer, but it can't read pdf files. I tried using pdfimages.exe, but it says "Permission Error: Copying of images from this document is not allowed.". Not sure what I should do, but any help is appreciated. I did ask 6 months ago, but I never got a reply. Is there someone I can dm for help?

I think only few people can solve the problem
the program is highly protected

Unlocking dmme is very easy
Read this entire thread you will find the answer

If you don't have a PC... buy one.
You can buy a used laptop for around $100, and you don't need high specs.

do you know how to unlock dlsite? thank you

Yep thanks I did google pretty thoroughly before posting, but wasn't able to find v1.1.8 hosted anywhere. My preference is to stay as current as possible. Since software.informer.com only has v1.1.4 I was hoping someone on the forum would have an old installer for 1.1.8 on their drive or something like that. (IMG:[invalid] style_emoticons/default/smile.gif)

do you have older installer ?
thank you

Hi, does anyone know how to decrypt this type of files? (DLsite Play)
(IMG:[s8d7.turboimg.net] https://s8d7.turboimg.net/t1/106185906_DLsite__-_R18.png)

This post has been edited by NaNoNaX: Oct 22 2024, 20:21

Who can extract the e-book from toranoana?

Anyone have an old copy of DMM viewer? The latest one isn't working for the knife.

Happy to report the knife still works on DLs●te Viewer 1.1.10.3 for archives with a page-by-page streaming directory.

The method below for DLSite browser viewer no longer works. It seems they changed the way of encrypting the images or something, as the images now appear as encrypted texts in the DevTools. This includes all the books I've purchased prior to such change.

My guide was for DMM. I checked the DLSite browser viewer. There are 3 canvases for the current, previous and next pages, and the pages can be downloaded even while they aren't visible (unlike DMM). So you should execute

CODE

filename = 1
a = document.createElement('a')

function downloadCanvas() {
    canvases = document.querySelectorAll('canvas')
    for (canvas of [canvases[1], canvases[0], canvases[2]].filter(canvas => canvas)) {
        a.href = canvas.toDataURL('image/jpeg')
        a.download = filename++
        a.click()
    }
}

downloadCanvas()

after moving 1 page forward once, then

CODE

downloadCanvas()

every 3 pages. You will probably have to manually fix the numbers of the last pages if their count isn't a multiple of 3.

Any luck regarding CypherGuard .cpd files?

I noticed someone uploaded this new doujin, which is encrypted by CypherGuard. I wonder how they managed to rip the images. Did they simply screenshot it from the DLsite viewer?

[www.dlsite.com] https://www.dlsite.com/maniax/work/=/produc...RJ01300063.html
https://e-hentai.org/g/3156775/2311e28452/

This doujinshi can be downloaded in both dlst and cpd.
If you extract it from the dlst side, you don't need cpd.

Any luck regarding CypherGuard .cpd files?

I noticed someone uploaded this new doujin, which is encrypted by CypherGuard. I wonder how they managed to rip the images. Did they simply screenshot it from the DLsite viewer?

[www.dlsite.com] https://www.dlsite.com/maniax/work/=/produc...RJ01300063.html
https://e-hentai.org/g/3156775/2311e28452/

This doujinshi can be downloaded in both dlst and cpd.
If you extract it from the dlst side, you don't need cpd.

Then how about ones that are only viewable via browser or Cypherguard?



This post has been edited by alexthehippocroc: Dec 16 2024, 19:14

There is no publicly available method for removing CypherGuard PDF protection.
Display it on DLsite Play and save the canvas with "Capture node screenshot".

The encryption for DLsite Viewer is also done by the CypherGuard Library, so if the author of knife wanted to, he might be able to decrypt the cpd as well.

Then how about ones that are only viewable via browser or Cypherguard?