text
jetformat text slides.pptx -o slides.txt
jetformat text report.pdf
Extracts existing text layers. XLSX includes visible worksheets only. Not OCR: a scanned PDF returns nothing useful, and the request still counts because the command ran.
validate
jetformat validate slides.pptx
jetformat validate report.pdf
jetformat validate font.ttf
Checks that the file is well-formed for its type. Exit code 0 means valid. Use it before a batch to skip files that will fail.