> Acrobat opens it Unfortunately, this is a valid measure of a "valid Pdf" - it doesn't mean the Pdf will work in other readers. I've had some luck with qpdf

> Acrobat opens it Unfortunately, this is a valid measure of a "valid Pdf" - it doesn't mean the Pdf will work in other readers. I've had some luck with qpdf --check - as far as I can recall, I've not seen problems with a file that passes. http://qpdf.sourceforge.net/files/qpdf-manual.html#ref.testing-options http://qpdf.sourceforge.net/files/qpdf-manual.html#ref.testi... Also worth looking into is mutools with its --clean option.