How to convert a PDF to grayscale from command line avoiding to be rasterized?

Question

I\'m trying to convert to grayscale this PDF: https://dl.dropboxusercontent.com/u/10351891/page-27.pdf

Ghostscript (v 9.10) with pdfwrite Device fails with a \"Unabl

Answer 1

You can use something which I created. It gives you the option to choose the specific page numbers that you want to convert to grayscale. Handy if you don't want to grayscale the entire pdf. https://github.com/shoaibkhan94/PdfGrayscaler.