Changelog

v2.7 (2026-06-24)

Release note: v2.7

• Added comments extraction from DOCX files. Extracted comments are stored in LinkedTextAnnotation of the commented line.

• Added attachment extraction (images) to PdfImageReader (for images and PDF without a textual layer).

• Small bug fix in PdfTabbyReader.

• Added notes/comments extraction from PDF (parameter extract_notes) with linking to the commented text. Extracted comments are stored in LinkedTextAnnotation of the commented line.

v2.6.1 (2025-12-16)

Release note: v2.6.1

• Fixed some bugs in DocxReader.

• Replace outdated pylzma dependency by py7zr.

v2.6 (2025-09-19)

Release note: v2.6

• Improved table merge algorithm (added check on table layout).

• Improved header footer analysis of HeaderFooterDetector.

• Added header footer analysis support in PdfTabbyReader.

• Added header footer analysis info (parameter need_header_footer_analysis) in documentation.

• Updated to python3.10.

• Updated to ubuntu22.04.

• Added Support and Contributing (project rules, how to build, how to develop) in documentation.

v2.5 (2025-09-05)

Release note: v2.5

• Added simple multilingual textual layer correctness classification based on letter percentage calculation (textual_layer_classifier=letter).

• Added a new parameter textual_layer_classifier = [simple, ml (default), letter].

• Removed parameter fast_textual_layer_detection. Now it is a textual_layer_classifier=simple.

• Fixed bug with table_type=table_wo_external_bounds.

• Added parameter table_type and TableRecognizer info into documentation.

v2.4 (2025-07-28)

Release note: v2.4

• Upgrade PyPDF2 to pypdf>4 and fix bugs in attachments extraction from PDF files.

• Added each_page_textual_layer_detection parameter for textual layer detection on each page of PDF documents (for PdfAutoReader).

• Added ENABLE_CANCELLATION env variable for enabling/disabling parsing cancellation after client disconnection (enabled by default).

• Fixed location coordinates of attached images extracted by PdfTabbyReader.

• Added new reader PdfBrokenEncodingReader for PDF documents with textual layer but broken encoding (pdf_with_text_layer=bad_encoding).

v2.3.2 (2024-12-25)

Release note: v2.3.2

• Improve merging multi-page tables in PdfTabbyReader.

• Stop parsing after client disconnection (for API usage, see issue 488).

v2.3.1 (2024-11-15)

Release note: v2.3.1

• Fix bug with bold lines in DocxReader (see issue 479).

• Upgraded requirements.txt (beautifulsoup4 to 4.12.3 version).

• Added support for external grobid (added support env variable GROBID_AUTH_KEY for “Authorization” in request header).

• Added GOST (Russian government standard) frame recognition in PdfTabbyReader (need_gost_frame_analysis parameter).

• Update documentation (added GOST frame handling).

v2.3 (2024-09-19)

Release note: v2.3

• Dedoc telegram chat created.

• Added patterns parameter for configuring default structure type (Configure structure extraction using patterns).

• Added notebooks with Dedoc usage Notebooks with Dedoc usage examples (see issue 484).

• Fix bug OutOfMemoryError: Java heap space in PdfTabbyReader (see issue 489).

• Fix bug with numeration in DocxReader (see issue 494).

• Added GOST (Russian government standard) frame recognition in PdfImageReader and PdfTxtlayerReader (need_gost_frame_analysis parameter).

v2.2.7 (2024-08-16)

Release note: v2.2.7

• Fix bugs with start, end of BBoxAnnotation in PdfTabbyReader.

• Improve columns classification and orientation detection for PDF and images (is_one_column_document and document_orientation parameters).

• Upgrade docker: docker-compose is no longer supported, use docker compose instead.

• Fix bug of tables parsing in DocxReader (see issue 478).

• Added simple textual layer detection in PdfAutoReader (fast_textual_layer_detection parameter).

• Improve paragraph extraction from PDF documents and images.

• Retrain a classifier for diplomas (document_type="diploma") on a new dataset.

v2.2.6 (2024-07-22)

Release note: v2.2.6

• Upgrade dependencies: numpy<2.0 and dedoc-utils==0.3.7.

• Since this version, dedoc is supported by langchain (langchain-community>=0.2.10).

v2.2.5 (2024-07-15)

Release note: v2.2.5

• Added internal functions and classes to support integration of Dedoc into langchain

• Upgrade some dependencies, in particular, xgboost>=1.6.0, pandas, pdfminer.six

v2.2.4 (2024-06-20)

Release note: v2.2.4

• Show page division and page numbers in the HTML output representation (API usage, return_format="html").

• Make imports from dedoc library faster.

• Added tutorial how to add a new language to dedoc (not finished entirely).

• Added additional page_id metadata for multi-page nodes (structure_type="tree" in API, TreeConstructor in the library).

• Updated OCR and orientation/columns classification benchmarks.

• Minor edits of README.md.

• Fixed empty cells handling in CSVReader.

• Fixed bounding boxes extraction for text in tables for PdfTabbyReader.

v2.2.3 (2024-06-05)

Release note: v2.2.3

• Show attached images and added ability to download attached files in the HTML output representation (API usage, return_format="html").

• Added hierarchy level information and annotations to PptxReader.

v2.2.2 (2024-05-21)

Release note: v2.2.2

• Added images extraction to ArticleReader.

• Added attachments and references to them in the HTML output representation (return_format="html").

• Fixed functionality of parameter need_content_analysis.

• Fixed CSVReader (exclude BOM character from the output).

• Added handling files with wrong extension or without extension to DedocManager (detect file type by its content).

• Update README.md.

v2.2.1 (2024-05-03)

Release note: v2.2.1

• Added fintoc structure type for parsing financial prospects according to the FinTOC 2022 Shared task (FintocStructureExtractor).

• Fixed small bugs in ArticleReader: colspan for tables, keywords, sections numbering, etc.

• Added references to nodes and fixed small bugs in the HTML output representation (return_format="html").

• Removed other_fields from LineMetadata and DocumentMetadata.

• Update README.md.

v2.2 (2024-04-17)

Release note: v2.2

• PdfTabbyReader improved: bugs fixes, speed increase of partial PDF extraction (with parameter pages).

• Added benchmarks for evaluation of PDF readers performance.

• Added ReferenceAnnotation class.

• Fixed bug in can_read method for all readers.

• Added article structure type for parsing scientific articles using GROBID (ArticleReader, ArticleStructureExtractor).

v2.1.1 (2024-03-21)

Release note: v2.1.1

• Update README.md.

• Update table and time benchmarks.

• Re-label line-classifier datasets (law, tz, diploma, paragraphs datasets).

• Update tasker creators (for the labeling system).

• Fix HTML table parsing.

v2.1 (2024-03-05)

Release note: v2.1

• Custom loggers deleted (the common logger is used for all dedoc classes).

• Do not change the document image if it has a correct orientation (orientation correction function changed).

• Use only PdfTabbyReader during detection of a textual layer in PDF files.

• Code related to the labeling mode refactored and removed from the library package (it is located in the separate directory).

• Added BoldAnnotation for words in PdfImageReader.

• More benchmarks are added: images of tables parsing, postprocessing of Tesseract OCR.

• Some fixes are made in a web-form of Dedoc.

• Tutorial how to add a new structure type to Dedoc added Adding support for a new structure type to Dedoc.

• Parsing of EML and HTML files fixed.

v2.0 (2023-12-25)

Release note: v2.0

• Fix table extraction from PDF using empty config (see issue).

• Add more benchmarks for Tesseract.

• Fix extension extraction for file names with several dots.

• Change names of some methods and their parameters for all main classes (attachments extractors, converters, readers, metadata extractors, structure extractors, structure constructors). Please look to the Package reference of documentation for more details.

• Add AttachAnnotation and TableAnnotation to PPTX (see discussion).

• Fix bugs in DOCX handling (see issues 378, 379

v1.1.1 (2023-11-24)

Release note: v1.1.1

• Use older pydantic version for improving compatibility with other libraries.

• Add support for RTF format (DocxConverter).

• Fix bug in handling files’ names with dots and spaces.

• Fix bug in non-integer values of text formatting in DocxReader.

• Add support of on_gpu parameter in config.

• Add attached images extraction for PdfTabbyReader.

• Fix partial file reading for PdfTabbyReader.

• Add tutorial how to create dedoc’s basic data structures.

• Fix attachments_dir parameter for readers and attachments extractors.

v1.1.0 (2023-10-24)

Release note: v1.1.0

• Add BBoxAnnotation to table cells for PdfTabbyReader.

• Fix swagger, add api schema classes, remove to_dict method from ParsedDocument.

• Improve parsing PDF by PdfTxtlayerReader, add benchmarks.

• Fix BBoxAnnotation extraction for tables in PdfImageReader using table_type=split_last_column parameter.

• Change base method of metadata extractors, rename it to extract_metadata.

• Unify BBoxAnnotation extraction for all PDF readers - return only words bboxes.

• Increase timeout value for all converters.

v1.0 (2023-10-10)

Release note: v1.0

• Remove is_one_column_document_list parameter.

• Add tutorial about support for a new document type to the documentation.

• Improve textual layer correctness classifier.

• Improve orientation and columns classifier.

• Change table’s output structure - added CellWithMeta instead of a textual string.

• Add BBoxAnnotation to table cells for PdfTxtlayerReader and PdfImageReader.

• Add ConfidenceAnnotation to table cells for PdfImageReader.

• Remove insert_table parameter.

• Added information about table and page rotation to the table and document metadata respectively.

• Use dedoc-utils library for document images preprocessing.

• Change web interface, fix online-examples of document processing.

• Add comparison operator to LineWithMeta.

v0.11.2 (2023-09-06)

Release note: v0.11.2

• Remove plexus-utils-1.1.jar.

• Update installation documentation.

• Add documentation for Tesseract OCR installation.

• Add documentation for annotations.

• Add documentation for secure torch.

• Fix examples.

v0.11.1 (2023-08-30)

Release note: v0.11.1

• Add bbox annotations in PdfTabbyReader.

• Add bbox annotations for words in PdfTxtlayerReader.

• Add an option plain_text to the return_format parameter.

• Reduce size of the dedoc base image, move dockerfiles to the separate repository.

• Refactor script for tesseract benchmarking.

• Make fixed dedoc dependencies as ranges.

• Add table cell properties in PdfTabbyReader.

v0.11.0 (2023-08-22)

Release note: v0.11.0

• Rename exceptions classes.

• Update style tests.

• Change ConfidenceAnnotation value range to [0, 1].

• Add bbox annotations for words in PdfImageReader.

v0.10.0 (2023-08-01)

Release note: v0.10.0

• Add ConfidenceAnnotation annotation for PdfImageReader.

• Remove version parameter from metadata extractors, structure constructors and parsed document methods.

• Add version file and version resolving for the library.

• Add recursive handling of attachments.

• Add parameter for saving attachments in a custom directory.

• Remove dedoc threaded manager.

• Improve PdfAutoReader.

• Add temporary file name to DocumentMetadata.

v0.9.2 (2023-07-18)

Release note: v0.9.2

• Fix bug for diplomas with insert_table=true.

• Fix logging in PDF slicing.

• Make PdfAutoReader faster.

• Update bold classifier.

• Tests Refactoring.

• Fix bug in models downloading inside docker container.

v0.9.1 (2023-07-05)

Release note: v0.9.1

• Fixed bug with AttachAnnotation in docx: its value is equal attachment uid instead of file name.

v0.9 (2023-06-26)

Release note: v0.9

• Publication of the first version of dedoc library.