<div dir="ltr">I had a LaTeX file containing both text and maths but I wanted to extract just display maths (typesetting them one after each other) so the only thing I could think of was using preview package with tightpage option. It did give each of my display formuals in one page and then I used pdfpages to typeset these one after the other but the result was not good. Do you know how you can extract display formuals from a LaTeX documents that contains both text and maths? What I mean is that you typeset an article for a journal but later for your refernce you want to have a formula sheet (formulas extracted from your article that contained both maths and texts).<br>
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