Adobe Digital Editions DRM removal failed

[SquareRecord902]

Debug Log below Calibre updated today (Feb. 14, 2022) to latest DeDRM updated today to 7.2.1 Surface Pro 5, Windows 10, latest update Adobe Digital Editions PDF from university library via ProQuest Ebook Central Opened the book in ADE reader, latest update, then decided I wanted to strip DRM

calibre Debug log calibre 5.36 embedded-python: True is64bit: False Windows-10-10.0.19041 Windows ('32bit', 'WindowsPE') 32bit process running on 64bit windows ('Windows', '10', '10.0.19041') Python 3.8.5 Windows: ('10', '10.0.19041', '', 'Multiprocessor Free') Interface language: None Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (1, 46, 0) && DeDRM (7, 2, 1) && Package KFX (from KFX Input) (1, 46, 0) && KFX metadata reader (from KFX Input) (1, 46, 0) && KFX Input (1, 46, 0) calibre 5.36 embedded-python: True is64bit: False Windows-10-10.0.19041 Windows ('32bit', 'WindowsPE') 32bit process running on 64bit windows ('Windows', '10', '10.0.19041') Python 3.8.5 Windows: ('10', '10.0.19041', '', 'Multiprocessor Free') Interface language: None Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (1, 46, 0) && DeDRM (7, 2, 1) && Package KFX (from KFX Input) (1, 46, 0) && KFX metadata reader (from KFX Input) (1, 46, 0) && KFX Input (1, 46, 0) Turning on automatic hidpi scaling devicePixelRatio: 2.0 logicalDpi: 96.0 x 96.0 physicalDpi: 133.6430769230769 x 133.90057803468207 Using calibre Qt style: True [0.00] Starting up... [0.00] Showing splash screen... [1.78] splash screen shown [1.78] Initializing db... [1.78] db initialized [1.78] Constructing main UI... [2.91] main UI initialized... [2.91] Hiding splash screen Starting QuickView DeDRM v7.2.1: Trying to decrypt Ars Vitae.pdf DeDRM v7.2.1: Ars Vitae.pdf is a PDF ebook DeDRM v7.2.1: Trying Encryption key default_key DeDRM v7.2.1: Exception when decrypting after 0.3 seconds Traceback (most recent call last): File "calibre_plugins.dedrm.init", line 436, in PDFDecrypt File "calibre_plugins.dedrm.ineptpdf", line 2178, in decryptBook File "calibre_plugins.dedrm.ineptpdf", line 1984, in init File "calibre_plugins.dedrm.ineptpdf", line 1469, in initialize File "calibre_plugins.dedrm.ineptpdf", line 1599, in initialize_ebx File "calibre_plugins.dedrm.ineptpdf", line 390, in decrypt File "Crypto\Cipher\PKCS1_v1_5.py", line 165, in decrypt ValueError: Ciphertext with incorrect length. DeDRM v7.2.1: Failed to decrypt with key default_key after 0.3 seconds DeDRM v7.2.1: Looking for new default Adobe Digital Editions Keys after 0.3 seconds Found 1 keys DeDRM v7.2.1: Trying a new default key [35.22] splash screen hidden [35.22] Started up in 35.22 seconds with 24 books stdout+stderr from file dialog helper: [b'', b''] piped data from file dialog helper: [b'\xd1\xdb\xadu\xaen\xb9\x96FW\xe5\x8b\x0e\xb4\xa5TO\X\x97t2!U1\\xcb\x12\n\xd61\xaf', b'C:\Users\JR Surface Pro\OneDrive\Documents\My Digital Editions\Ars Vitae.pdf'] DeDRM v7.2.1: Exception when decrypting after 0.5 seconds Traceback (most recent call last): File "calibre_plugins.dedrm.init", line 487, in PDFDecrypt File "calibre_plugins.dedrm.ineptpdf", line 2178, in decryptBook File "calibre_plugins.dedrm.ineptpdf", line 1984, in init File "calibre_plugins.dedrm.ineptpdf", line 1469, in initialize File "calibre_plugins.dedrm.ineptpdf", line 1599, in initialize_ebx File "calibre_plugins.dedrm.ineptpdf", line 390, in decrypt File "Crypto\Cipher\PKCS1_v1_5.py", line 165, in decrypt ValueError: Ciphertext with incorrect length. DeDRM v7.2.1: Failed to decrypt with new default key after 0.5 seconds DeDRM v7.2.1: Ultimately failed to decrypt after 0.5 seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md Running file type plugin DeDRM failed with traceback: Traceback (most recent call last): File "calibre\customize\ui.py", line 175, in _run_filetype_plugins File "calibre_plugins.dedrm.init", line 640, in run File "calibre_plugins.dedrm.init", line 515, in PDFDecrypt calibre_plugins.dedrm.DeDRMError: DeDRM v7.2.1: Ultimately failed to decrypt after 0.5 seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md Traceback (most recent call last): File "calibre\customize\ui.py", line 432, in get_file_type_metadata File "calibre\customize\builtins.py", line 315, in get_metadata File "calibre\ebooks\metadata\pdf.py", line 124, in get_metadata ValueError: Could not read info dict from PDF Syntax Error: Couldn't find the 'EBX_HANDLER' security handler

pdfinfo errored out with return code: 1 Exception ignored in: <function NativeFunction.del at 0x07D57070> Traceback (most recent call last): File "calibre_plugins.dedrm.adobekey", line 268, in del TypeError: 'NoneType' object is not callable Exception ignored in: <function NativeFunction.del at 0x07D57070> Traceback (most recent call last): File "calibre_plugins.dedrm.adobekey", line 268, in del TypeError: 'NoneTAdded Ars Vitae to db in: 0.1 Added 1 books in 1.8 seconds

[ElleKayEm]

ProQuest has switched to the hardened Adobe DRM which cannot be removed (yet).

[SquareRecord902]

Ah. Thanks.

[tvphanatic]

Take a look at https://github.com/noDRM/DeDRM_tools/pull/48 for an update that can decrypt the newer ProQuest files (I tested on two ebooks and it worked).

[Kiri68]

Take a look at https://github.com/noDRM/DeDRM_tools/pull/48 for an update that can decrypt the newer ProQuest files (I tested on two ebooks and it worked).

This link shows no content, can you send me a copy?

[ElleKayEm]

Copy and paste the link text. (Clicking takes you to this repo instead of noDRM's.)

[Kiri68]

Copy and paste the link text. (Clicking takes you to this repo instead of noDRM's.)

thanks！