Workflow Guide format conversion

In this processing step the produced PAGE XML files can be converted to ALTO, PDF, hOCR or text files. Note that ALTO and hOCR can also be converted into different formats whereas the PDF version of PAGE XML OCR results is a widely accessible format that can be used as-is by expert and layman alike.

Available processors

Processor	Parameter	Remarks	Call
ocrd-fileformat-transform	{"from-to": "alto2.0 alto3.0"} # or {"from-to": "alto2.0 alto3.1"} # or {"from-to": "alto2.0 hocr"} # or {"from-to": "alto2.1 alto3.0"} # or {"from-to": "alto2.1 alto3.1"} # or {"from-to": "alto2.1 hocr"} # or {"from-to": "alto page"} # or {"from-to": "alto text"} # or {"from-to": "gcv hocr"} # or {"from-to": "hocr alto2.0"} # or {"from-to": "hocr alto2.1"} # or {"from-to": "hocr text"} # or {"from-to": "page alto"} # or {"from-to": "page hocr"} # or {"from-to": "page text"}	as the values consist of two words, when using `-P` they have to be enclosed in quotation marks; e.g. -P from-to "alto2.0 alto3.0" if you want to save all OCR results in one file, you can use the following command: `cat OCR* > full.txt`	ocrd-fileformat-transform -I OCR-D-OCR -O OCR-D-ALTO
ocrd-pagetopdf	{ # fix (invalid) negative coordinates "negative2zero": true, # create a single "fat" PDF "multipage": "name_of_pdf", # render text on this level "textequiv_level": "word", # draw polygon outlines in the PDF "outlines": "line" }		ocrd-pagetopdf -I OCR-D-OCR -O OCR-D-PDF -P textequiv_level word

Notes on parameter usage

E.g.

• which parameters do you use with what values?
• which parameters are insufficiently documented?
• which aspects of a processor should be parameterizable but are not?

Notes on document-specific usage

E.g. which processors worked best with what material? -- feel free to post sample images here, too.