Can't remove DRM, don't know what I'm doing wrong

[Lolliponzo]

I'm trying to convert a pdf but I always get this error. I have installed ADE 4.5.12.112 and I can read the pdf there.

calibre, version 7.6.0 (win32, embedded-python: True)
Errore di conversione: Non riuscita: Converti libro 1 di 1

Converti libro 1 di 1
DeDRM v10.0.9: Trying to decrypt lnxc8wnj.pdf
DeDRM v10.0.9: lnxc8wnj.pdf is a PDF ebook with encryption EBX_HANDLER
DeDRM v10.0.9: lnxc8wnj.pdf is a PDF ebook (EBX) for UUID 034cb0cc-ea1a-4113-822f-474f8630b186
DeDRM v10.0.9: Looking for new default Adobe Digital Editions Keys after 0.1 seconds
DeDRM v10.0.9: Exception when getting default Adobe Key after 0.1 seconds
Traceback (most recent call last):
File "calibre_plugins.dedrm.init", line 727, in PDFIneptDecrypt
File "C:\Users-----\AppData\Roaming\calibre\plugins\DeDRM.zip\adobekey.py", line 293, in adeptkeys
File "C:\Users-----\AppData\Roaming\calibre\plugins\DeDRM.zip\adobekey.py", line 273, in CryptUnprotectData
adobekey.ADEPTError: Failed to decrypt user key key (sic)
DeDRM v10.0.9: Finished after 0.2 seconds
Conversion options changed from defaults:
verbose: 2
pdf_serif_family: 'Tahoma'
pdf_mono_family: 'Courier New'
output_profile: 'generic_eink'
read_metadata_from_opf: 'C:\Users\-----\AppData\Local\Temp\calibre_2fcid2td\t9z0ksci.opf'
pdf_sans_family: 'Tahoma'
Resolved conversion options
calibre version: 7.6.0
{'asciiize': False,
'author_sort': None,
'authors': None,
'base_font_size': 0.0,
'book_producer': None,
'change_justification': 'original',
'chapter': "//[((name()='h1' or name()='h2') and re:test(., "
"'\s((chapter|book|section|part)\s+)|((prolog|prologue|epilogue)(\s+|$))', "
"'i')) or @Class = 'chapter']",
'chapter_mark': 'pagebreak',
'comments': None,
'cover': None,
'custom_size': None,
'debug_pipeline': None,
'dehyphenate': True,
'delete_blank_paragraphs': True,
'disable_font_rescaling': False,
'duplicate_links_in_toc': False,
'embed_all_fonts': False,
'embed_font_family': None,
'enable_heuristics': False,
'expand_css': False,
'extra_css': None,
'filter_css': '',
'fix_indents': True,
'font_size_mapping': None,
'format_scene_breaks': True,
'html_unwrap_factor': 0.4,
'input_encoding': None,
'input_profile': <calibre.customize.profiles.InputProfile object at 0x00000268FB7380D0>,
'insert_blank_line': False,
'insert_blank_line_size': 0.5,
'insert_metadata': False,
'isbn': None,
'italicize_common_cases': True,
'keep_ligatures': False,
'language': None,
'level1_toc': None,
'level2_toc': None,
'level3_toc': None,
'line_height': 0.0,
'linearize_tables': False,
'margin_bottom': 5.0,
'margin_left': 5.0,
'margin_right': 5.0,
'margin_top': 5.0,
'markup_chapter_headings': True,
'max_toc_links': 50,
'minimum_line_height': 120.0,
'new_pdf_engine': False,
'no_chapters_in_toc': False,
'no_images': False,
'no_inline_navbars': False,
'output_profile': <calibre.customize.profiles.GenericEink object at 0x00000268FB6E00D0>,
'page_breaks_before': "//*[name()='h1' or name()='h2']",
'paper_size': 'letter',
'pdf_add_toc': False,
'pdf_default_font_size': 20,
'pdf_footer_template': None,
'pdf_header_template': None,
'pdf_hyphenate': False,
'pdf_mark_links': False,
'pdf_mono_family': 'Courier New',
'pdf_mono_font_size': 16,
'pdf_no_cover': False,
'pdf_odd_even_offset': 0.0,
'pdf_page_margin_bottom': 72.0,
'pdf_page_margin_left': 72.0,
'pdf_page_margin_right': 72.0,
'pdf_page_margin_top': 72.0,
'pdf_page_number_map': None,
'pdf_page_numbers': False,
'pdf_sans_family': 'Tahoma',
'pdf_serif_family': 'Tahoma',
'pdf_standard_font': 'serif',
'pdf_use_document_margins': False,
'prefer_metadata_cover': False,
'preserve_cover_aspect_ratio': False,
'pretty_print': False,
'pubdate': None,
'publisher': None,
'rating': None,
'read_metadata_from_opf': 'C:\Users\-----\AppData\Local\Temp\calibre_2fcid2td\t9z0ksci.opf',
'remove_fake_margins': True,
'remove_first_image': False,
'remove_paragraph_spacing': False,
'remove_paragraph_spacing_indent_size': 1.5,
'renumber_headings': True,
'replace_scene_breaks': '',
'search_replace': '[]',
'series': None,
'series_index': None,
'smarten_punctuation': False,
'sr1_replace': None,
'sr1_search': None,
'sr2_replace': None,
'sr2_search': None,
'sr3_replace': None,
'sr3_search': None,
'start_reading_at': None,
'subset_embedded_fonts': False,
'tags': None,
'timestamp': None,
'title': None,
'title_sort': None,
'toc_filter': None,
'toc_threshold': 6,
'toc_title': None,
'transform_css_rules': '[]',
'transform_html_rules': '[]',
'uncompressed_pdf': False,
'unit': 'inch',
'unsmarten_punctuation': False,
'unwrap_factor': 0.45,
'unwrap_lines': True,
'use_auto_toc': False,
'use_profile_size': False,
'verbose': 2}
DeDRM v10.0.9: Trying to decrypt lnxc8wnj.pdf
DeDRM v10.0.9: lnxc8wnj.pdf is a PDF ebook with encryption EBX_HANDLER
DeDRM v10.0.9: lnxc8wnj.pdf is a PDF ebook (EBX) for UUID 034cb0cc-ea1a-4113-822f-474f8630b186
DeDRM v10.0.9: Looking for new default Adobe Digital Editions Keys after 0.0 seconds
DeDRM v10.0.9: Exception when getting default Adobe Key after 0.0 seconds
Traceback (most recent call last):
File "calibre_plugins.dedrm.init", line 727, in PDFIneptDecrypt
File "C:\Users-----\AppData\Roaming\calibre\plugins\DeDRM.zip\adobekey.py", line 293, in adeptkeys
File "C:\Users-----\AppData\Roaming\calibre\plugins\DeDRM.zip\adobekey.py", line 273, in CryptUnprotectData
adobekey.ADEPTError: Failed to decrypt user key key (sic)
DeDRM v10.0.9: Finished after 0.0 seconds
InputFormatPlugin: PDF Input running
on C:\Users----\AppData\Local\Temp\calibre_2fcid2td\lnxc8wnj.pdf
Converting file to html...
Traceback (most recent call last):
File "runpy.py", line 198, in _run_module_as_main
File "runpy.py", line 88, in _run_code
File "site.py", line 95, in
File "site.py", line 90, in main
File "site.py", line 50, in run_entry_point
File "calibre\utils\ipc\worker.py", line 215, in main
File "calibre\gui2\convert\gui_conversion.py", line 38, in gui_convert_override
File "calibre\gui2\convert\gui_conversion.py", line 25, in gui_convert
File "calibre\ebooks\conversion\plumber.py", line 1108, in run
File "calibre\customize\conversion.py", line 242, in call
File "calibre\ebooks\conversion\plugins\pdf_input.py", line 51, in convert
File "calibre\ebooks\pdf\pdftohtml.py", line 83, in pdftohtml
calibre.ebooks.ConversionError: pdftohtml failed with return code: 1
Syntax Error: Couldn't find the 'EBX_HANDLER' security handler

I don't know what to do, I don't understand much of it. I looked for similar discussion but it didn't helped. Thank you in advance

[LucianoCassarini]

The error you are experiencing appears to be related to the DRM protection of the PDF file.

Make sure the DeDRM plugin is up to date and make sure the DeDRM plugin you are using is compatible with the version of Adobe Digital Editions (ADE) installed on your system.

I also recommend that you try another PDF to rule out that the error is from the PDF you are trying to convert.

[Lolliponzo]

No, it wans't, I downloaded the acsm file and then I installed ADE and authorized it with Adobe ID.

[ElleKayEm]

But did you authorize ADE before opening the acsm file?

[Lolliponzo]

Yes, I authorized ADE and then I opened the acsm, so it is linked to my account

[ElleKayEm]

You could try de-authorizing and re-authorizing ADE with your Adobe ID. Scroll down on this page to the section under TROUBLESHOOTING REAUTHORIZATION AND DEAUTHORIZATION ISSUES ON WINDOWS: https://helpx.adobe.com/digital-editions/kb/activation-errors-adobe-digital-editions.html

As it says there, be very careful when editing the Windows registry. Afterward add your book to calibre again.

[Lolliponzo]

I did it twice, the first time didn't work but the second one it worked! Finally! Thanks a lot!

[ElleKayEm]

Great! Thanks for reporting back.

[as5835]

I purchased DeDRM software. I will help you convert it to PDF for free. Message me

[ElleKayEm]

They already solved it with the free software here.