failed to remove DRM

[Ledgrev]

Hello,

I wanted to remove the DRM from the PDF of a book loaned from the Onleihe. This has never caused any problems before, but now I get the following error message: Convert book 1 of 1 (Textanalyse und Interpretation zu Friedrich Schiller, Die Räuber-2) Conversion options changed from defaults: read_metadata_from_opf: u'C:\\Users\\ledgreve\\AppData\\Local\\Temp\\calibre_huafqs\\va0vod.opf' verbose: 2 output_profile: u'generic_eink' Resolved conversion options calibre version: 4.13.0 {'asciiize': False, 'author_sort': None, 'authors': None, 'base_font_size': 0.0, 'book_producer': None, 'change_justification': u'original', 'chapter': u"//*[((name()='h1' or name()='h2') and re:test(., '\\s*((chapter|book|section|part)\\s+)|((prolog|prologue|epilogue)(\\s+|$))', 'i')) or @class = 'chapter']", 'chapter_mark': u'pagebreak', 'comments': None, 'cover': None, 'debug_pipeline': None, 'dehyphenate': True, 'delete_blank_paragraphs': True, 'disable_font_rescaling': False, 'dont_split_on_page_breaks': False, 'duplicate_links_in_toc': False, 'embed_all_fonts': False, 'embed_font_family': None, 'enable_heuristics': False, 'epub_flatten': False, 'epub_inline_toc': False, 'epub_toc_at_end': False, 'epub_version': u'2', 'expand_css': False, 'extra_css': None, 'extract_to': None, 'filter_css': u'', 'fix_indents': True, 'flow_size': 260, 'font_size_mapping': None, 'format_scene_breaks': True, 'html_unwrap_factor': 0.4, 'input_encoding': None, 'input_profile': <calibre.customize.profiles.InputProfile object at 0x05D3D2D0>, '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_default_epub_cover': False, 'no_images': False, 'no_inline_navbars': False, 'no_svg_cover': False, 'output_profile': <calibre.customize.profiles.GenericEink object at 0x05D3D4D0>, 'page_breaks_before': u"//*[name()='h1' or name()='h2']", 'prefer_metadata_cover': False, 'preserve_cover_aspect_ratio': False, 'pretty_print': True, 'pubdate': None, 'publisher': None, 'rating': None, 'read_metadata_from_opf': u'C:\\Users\\ledgreve\\AppData\\Local\\Temp\\calibre_huafqs\\va0vod.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': u'', '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': '[]', 'unsmarten_punctuation': False, 'unwrap_factor': 0.45, 'unwrap_lines': True, 'use_auto_toc': False, 'verbose': 2} InputFormatPlugin: PDF Input running on C:\Users\ledgreve\AppData\Local\Temp\calibre_huafqs\ptuze7.pdf Converting file to html... Python function terminated unexpectedly pdftohtml failed with return code: 1 Syntax Error: Couldn't find the 'EBX_HANDLER' security handler (Error Code: 1) Traceback (most recent call last): File "site.py", line 114, in main File "site.py", line 88, in run_entry_point File "site-packages\calibre\utils\ipc\worker.py", line 209, in main File "site-packages\calibre\gui2\convert\gui_conversion.py", line 43, in gui_convert_override File "site-packages\calibre\gui2\convert\gui_conversion.py", line 28, in gui_convert File "site-packages\calibre\ebooks\conversion\plumber.py", line 1110, in run File "site-packages\calibre\customize\conversion.py", line 246, in __call__ File "site-packages\calibre\ebooks\conversion\plugins\pdf_input.py", line 54, in convert File "site-packages\calibre\ebooks\pdf\pdftohtml.py", line 90, in pdftohtml calibre.ebooks.ConversionError: pdftohtml failed with return code: 1 Syntax Error: Couldn't find the 'EBX_HANDLER' security handler Could someone help me? Thank you!

EDIT: I use version 6.6.3 in Calibre 4.13 (perhaps that might help)

[ElleKayEm]

These tools are intended for purchased books.