Convert to grayscale per page.

Only the selected pages will be converted.
 
  Pdf convert to gray per pages
 
 

How does it work?
  You need to select the gray pages by clicking on the bar at the bottom of the image.
It takes into account the entire area of ​​the pdf. Including the part outside the cropped size.


Color markings:

Pdf color page to gray convert color page

Pdf gray page. No convert. gray page

Selected page to gray convert. selected page to convert.



 

Result:
  Only the selected pages are converted. We get one-color black crop marks.
Pantone, separated, and registration colors are also converted.
 

Comment:
  In the case of a PDF with a large number of pages and many images, the conversion may take several minutes.