\starttext $\int_{i=1}^{\infty} x^2$ \stoptext $ mudraw -ttt test.pdf <?xml version="1.0"?> <document name="test.pdf"> warning: ignoring surrogate pair mapping in cmap <page> <block bbox="280.534 67.7741 286.392 84.595"> <line bbox="280.534 67.7741 286.392 84.595"> <span bbox="280.534 67.7741 286.392 84.595" font="LMRoman12-Regular" size="11.9552"> <char bbox="280.534 67.7741 286.392 84.595" c="1"/> </span> </line> </block> <block bbox="75.4124 101.448 84.9435 156.849"> <line bbox="75.4124 101.448 84.9435 156.849"> <span bbox="75.4124 101.448 84.9435 156.849" font="LatinModernMath-Regular" size="8.36861"> <char bbox="75.4124 101.448 84.9435 156.849" c="&#x221e;"/> </span> </line> </block> <block bbox="72.2341 100.779 80.1837 179.922"> <line bbox="72.2341 100.779 80.1837 179.922"> <span bbox="72.2341 100.779 80.1837 179.922" font="LatinModernMath-Regular" size="11.9552"> <char bbox="72.2341 100.779 80.1837 179.922" c="&#x222b;"/> </span> </line> </block> <block bbox="68.8824 124.759 83.5355 180.159"> <line bbox="68.8824 124.759 83.5355 180.159"> <span bbox="68.8824 124.759 83.5355 180.159" font="LatinModernMath-Regular" size="8.36861"> <char bbox="68.8824 124.759 70.5728 180.159" c="u"/> <char bbox="70.5728 124.759 72.2631 180.159" c="&#xdc56;"/> <char bbox="72.2633 124.759 78.7736 180.159" c="="/> <char bbox="78.7741 124.759 83.5355 180.159" c="1"/> </span> </line> </block> <block bbox="87.513 100.785 99.7105 179.928"> <line bbox="87.513 100.785 99.7105 179.928"> <span bbox="87.513 100.785 94.3509 179.928" font="LatinModernMath-Regular" size="11.9552"> <char bbox="87.513 100.785 94.3509 179.928" c="?"/> </span> <span bbox="94.9491 109.213 99.7105 164.614" font="LatinModernMath-Regular" size="8.36861"> <char bbox="94.9491 109.213 99.7105 164.614" c="2"/> </span> </line> </block> </page> </document> On Wed, May 15, 2013 at 6:14 PM, Xan wrote:

Al 13/05/13 09:55, En/na luigi scarso ha escrit:

On Sun, May 12, 2013 at 4:32 PM, Xan wrote:

...

Hi,

I just want to know if there is any tool to convert a pdf (generated by latex or context) to latex source or context source file. Does anyone have got an experience on that?

I'm thinking about two alternatives: * libraries for reading like podofo and custom script for passing pdf context (text) to context commands * pass pdf to jpg, and apply http://detexify.kirelabs.org/classify.htmlfor passing to tex symbols.

For me it's vital to pass mathematical symbols like (\int) to tex symbol and not like utf-8 symbols.

Thanks a lot, Xan.

Have you seen the mudraw program of mupdf http://www.mupdf.com/ ? It has a -t switch that outputs txt and a -tt and -ttt switches that output xml.

-- luigi

Thank you for answering and sorry for delay. I will check it, but I suspect that if I have

$$\int_{i=1}^{\infty} x^2$$

in one latex document and it generates pdf, then mupdf -t of that document does not generate that formula, else "S i=1 x²".

Thanks, Xan.

-- luigi