OCR conversion

February 13, 2026 · View on GitHub

Collection of scripts and stylesheets for conversion between various OCR formats.

You may also want to check out the excellent ocr-fileformat by @UB-Mannheim.

abbyy2hocr.xsl - ABBYY FineReader XML to hOCR converter @Rod Page
abbyy2hocr.xsl - ABBYY FineReader XML to hOCR converter by @Rod Page - updated by @OCR-D
abbyy-to-hocr - ABBYY FineReader XML to hOCR converter by @merlijn
teip5-v5.xsl - Transform ABBYY Finereader XML into TEI @UPEI
ABBYY_to_TEI_by_XMLReader.php - Convert ABBYY XML to TEI using PHP's XMLReader @able-project
ocr_to_teifacsimile.xsl - Generate page-level TEI facsimile from Abbyy OCR xml or METS/ALTO @readux
AbbyyToAlto.php - PHP5 to convert Abbyy FineReader XML into ALTO XML @ironymark
AbbyyToAltoConverter.java - Java library to convert abbyy.xml (v10) to alto.xml (v2) @abbyy-to-alto

alto2tei.xsl - Output TEI from ALTO input format @OpenConvert
AltoToTeiA.xsl - For Gale OCR XML or 18thConnect Typewright XML files @typewright
ocr_to_teifacsimile.xsl - Generate page-level TEI facsimile from Abbyy OCR xml or METS/ALTO @readux
alto2hocr.xsl - Convert ALTO 2.0 / ALTO 2.1 to hOCR @filak
alto2text.xsl - Convert ALTO 2.0 / ALTO 2.1 to plain text @filak
alto_ocr_text.py - Extracts the text from an ALTO file and writes it to stdout @cneud
ALTO2HTML.bat - Batch script to convert ALTO files to HTML @altomator
dinglehopper-extract - Extracts the text from ALTO and PAGE XML files @qurator-spk

hOCR2ALTO.xsl - Utilities to process and handle hOCR @ONB-RD
hocr2alto2.0.xsl - Convert hOCR to ALTO 2.0 @filak
hocr2alto2.1.xsl - Convert hOCR to ALTO 2.1 @filak
hocr2tei.xsl - Convert hOCR from Tesseract to basic TEI output @DH2015
hocr2tei.xsl - Convert hOCR from Tesseract to basic TEI output from @DH2015 - updated by @OCR-D
hocr2text.xsl Convert hOCR to plain text @filak
HocrConverter.py - Create a PDF from an hOCR file and an image @jbrinley