This is exactly what I do.
My problem is pdf_tex format that is not accepted by a scientific journal at the time to upload documents and images.
what solution do you propose me?

hello, I create a figure on Inkscape, this one contains latex formula. So I saved as .pdf_tex format and include it to my latex file. The problem is that this format ".pdf_tex" is not supported by the journal to which I want to submit the paper containing this image. the supported formats ...