It would be nice if there is a possibility to copy a certain text (which is a formula) as formula (detect and convert) and let return the specfic formula syntax text to clipboard. Possible target formats should be MATHML, Latex. Another possible candidate is LibreOffice /OpenOffice math. From user perspective, I expect to select the select function and have addional entries like under "Text": copy as MATHML to clipboard, copy as Latex to clipboard, copy as LibreOffice Math to clipboard Reproducible: Always
Is there any other software able to extract formulas from PDF? To me it looks like a very hard problem, as soon as the formulas use multiple levels of text (fractions etc.)
(In reply to Christoph Feck from comment #1) > Is there any other software able to extract formulas from PDF? To me it > looks like a very hard problem, as soon as the formulas use multiple levels > of text (fractions etc.) MaxTract (development canceled) can do the extraction directly. http://www.cs.bham.ac.uk/research/groupings/reasoning/sdag/maxtract.php Infty Reader can do it using OCR. Some thoughts on the problem can be found here (my tests confirm the conclusions of this paper and nothing seems changed from 2011): http://www.cs.bham.ac.uk/~aps/research/papers/pdf/BaSeSoSu-ICDAR11-ComparingApproachesToMathematicalDocumentAnalysisFromPDF.pdf IMHO, it is hard to expect that free OCR engines like Ocropus/Tesseract can solve the problem in the nearest future. At least, I failed to train Tesseract in recognition of even rather simple formulas.