[QUESTION] DeDRM not working for adobe digital editions

[hsyim990]

CheckList

• [x] The Title and The Log Title are setted correctly.
• [x] Clarified about my environment.
• [x] Code block is used for the log.

---

Title

My Environment

Calibre: Version

Kindle: Version

DeDRM: Version

Log

Log Title

```log calibre Debug log calibre 5.13 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, 37, 0) && DeDRM (7, 1, 0) && Package KFX (from KFX Input) (1, 37, 0) && KFX metadata reader (from KFX Input) (1, 37, 0) && KFX Input (1, 37, 0) && Set KFX metadata (from KFX Output) (1, 50, 0) && KFX Output (1, 50, 0) calibre 5.13 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, 37, 0) && DeDRM (7, 1, 0) && Package KFX (from KFX Input) (1, 37, 0) && KFX metadata reader (from KFX Input) (1, 37, 0) && KFX Input (1, 37, 0) && Set KFX metadata (from KFX Output) (1, 50, 0) && KFX Output (1, 50, 0) Turning on automatic hidpi scaling devicePixelRatio: 1.0 logicalDpi: 96.0 x 96.0 physicalDpi: 127.99999999999999 x 128.18691588785046 Using calibre Qt style: True [0.00] Starting up... [0.00] Showing splash screen... [1.27] splash screen shown [1.27] Initializing db... [1.28] db initialized [1.28] Constructing main UI... [2.06] main UI initialized... [2.06] Hiding splash screen Starting QuickView DeDRM v7.1.0: Trying to decrypt Unlocking Contract Law.pdf DeDRM v7.1.0: Unlocking Contract Law.pdf is a PDF ebook DeDRM v7.1.0: Trying Encryption key default_key error writing pdf: max() arg is an empty sequence DeDRM v7.1.0: Failed to decrypt with key default_key after 0.2 seconds DeDRM v7.1.0: Looking for new default Adobe Digital Editions Keys after 0.2 seconds Found 1 keys DeDRM v7.1.0: Trying a new default key error writing pdf: max() arg is an empty sequence DeDRM v7.1.0: Failed to decrypt with new default key after 0.3 seconds DeDRM v7.1.0: Ultimately failed to decrypt after 0.3 seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md [10.94] splash screen hidden [10.94] Started up in 10.94 seconds with 5 books stdout+stderr from file dialog helper: [b'', b''] piped data from file dialog helper: [b'\xa9\xb1g\xf17\xe1\n*\xc4\xaf\x9e\xde\x87\xe6\xab\xec\xab\x85\xcb]\x03\x9c\x85\x7f\xaa\xf0^,{0\xca`', b'C:\\Users\\sammy\\Documents\\My Digital Editions\\Unlocking Contract Law.pdf'] Added Unlocking Contract Law to db in: 0.2 Running file type plugin DeDRM failed with traceback: Traceback (most recent call last): File "calibre\customize\ui.py", line 172, in _run_filetype_plugins File "calibre_plugins.dedrm.__init__", line 638, in run File "calibre_plugins.dedrm.__init__", line 513, in PDFDecrypt calibre_plugins.dedrm.DeDRMError: DeDRM v7.1.0: Ultimately failed to decrypt after 0.3 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 428, in get_file_type_metadata File "calibre\customize\builtins.py", line 347, in get_metadata File "calibre\ebooks\metadata\pdf.py", line 126, 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: Traceback (most recent call last): File "calibre_plugins.dedrm.adobekey", line 266, in __del__ TypeError: 'NoneType' object is not callable Exception ignored in: Traceback (most recent call last): File "calibre_plugins.dedrm.adobekey", line 266, in __del__ TypeError: 'NoneType' object is notAdded 1 books in 1.1 seconds ```

[ElleKayEm]

Have you tried with calibre 4.23 and DeDRM 6.8.1? Also, if this is a large file, you may want to try 64-bit calibre.

[hsyim990]

Have you tried with calibre 4.23 and DeDRM 6.8.1? Also, if this is a large file, you may want to try 64-bit calibre.

Yeah when I tried it with calibre 4.23 and DeDRM 6.8.1 it works perfectly!! Thanks for the assist.

[ElleKayEm]

If you're all set, you can close the issue.