OCRmyPDF Docker#
OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched
ocrmypdf # it's a scriptable command line program
-l eng+fra # it supports multiple languages
--rotate-pages # it can fix pages that are misrotated
--deskew # it can deskew crooked PDFs!
--title "My PDF" # it can change output metadata
--jobs 4 # it uses multiple cores by default
--output-type pdfa # it produces PDF/A by default
input_scanned.pdf # takes PDF input (or images)
output_searchable.pdf # produces validated PDF output
Docker#
docker run --rm -i jbarlow83/ocrmypdf-alpine (... all other arguments here...)
# Using the OCRmyPDF web service wrapper
docker run -d --name ocrmypdf --entrypoint python -p 8501:8501 jbarlow83/ocrmypdf-alpine webservice.py
Feature demo#
# Add an OCR layer and convert to PDF/A
ocrmypdf input.pdf output.pdf
# Convert an image to single page PDF
ocrmypdf input.jpg output.pdf
# Add OCR to a file in place (only modifies file on success)
ocrmypdf myfile.pdf myfile.pdf
# OCR with non-English languages (look up your language's ISO 639-3 code)
ocrmypdf -l fra LeParisien.pdf LeParisien.pdf
# OCR multilingual documents
ocrmypdf -l eng+fra Bilingual-English-French.pdf Bilingual-English-French.pdf
# Deskew (straighten crooked pages)
ocrmypdf --deskew input.pdf output.pdf
Tests#
注：PDF中文扫描件对比Chrome识别准确率一般
tesseract --list-langs | grep chi_sim
ocrmypdf -l chi_sim input.pdf output.pdf
ocrmypdf -l chi_sim+eng input.pdf output.pdf
Runtime Environment#
Screenshots#
