How to convert color image to black in Acrobat DC

[KenOsmond]

I have a pdf of a logo that is currently red in color and I would like to convert it to black in Acrobat. I learned hot to convert it to greyscale but it just comes out grey, whereas I would like it to be a solid black. Is there any way to do this in Acrobat? I don't have any graphic programs on my computer so ideally would like to make this happen in Acrobat. 

Many thanks!

[ls_rbls]

Quick question, 

what operating system are you using, and which version of Adobe Acrobat are you using?

[KenOsmond]

Sorry, I somehow missed your message until now. 

I'm using Version 2015.007.20033 on Windows 10.

I've seen this done before at a previous company I worked for, but didn't follow along closely enough to do it myself now.

And I have tried playing around with the Print Production Tool to no avail. Best I can do is convert the original color to gray. Not black.

Thanks for responding!

[ls_rbls]

Hi, 

Just following up with you and see if you were able to figure this out.

I forgot to suggest before if you were able to experiment with the Print Production Tool.

[JR Boulay]

You already have an image editor on your computer.

Open the PDF using Accrobat Pro, open the "Edit PDF" tools pane, clic/select the image, and right-clic on the image : Edit using : Paint (or other).

After modifying the image : save and close it.

The modifications are instantly reflected in the PDF.

[Luke Jennings3]

If your logo is all one color, you can use a preflight fixup to map the existing color to solid black.

Go to Tools> Print Production> Preflight> Fixups.

Find the Preflight Map color with specified color values and duplicate it from the fly-out menu (You can't edit an existing preflight, but you can edit a new one).

The sample attached will map all dark blues 100,92,0,0 to 0,0,0,100

[TigerLily1531]

I have opened the .pdf, Tools>Print Production>Preflight>Profiles>PDF Fixups.  I do not have a selection"Map color with specific color values".  See attachment.  I have tried to scroll down and apparently 5 listed are my only choices.

[Luke Jennings3]

I have replied to your original question here:

https://community.adobe.com/t5/acrobat-discussions/highlights-amp-underlines-behind-text-in-emailed-...