[Affinity Designer - How do I format it to print in 100% K only?]

I noticed that too Mike the when I started playing with the eye dropper. That is so dumb!  :( Ok, so for this attachment I went and manually changed every single line to 100K Black. I sure hope that worked. Arrggggghhh lol. I'm currently downloading a trail of Adobe Pro because supposedly you can use it to check the CMYK values in PDF's (at least that's what I saw in my printers screenshot...) so I'm hoping that will show me if the colors are proper. I hope this works, I've never done professional printing before, so much to learn!

P - Carcross.afdesign

[Affinity Designer - How do I format it to print in 100% K only?]

OKay, that makes sense. I tried setting it to Grey/16 then back to CMYK. I went through the lines and on my end, they say 100% K now back in CMYK mode.  I reattached it after playing with it, do they show 100% K for you?   

P - Carcross.afdesign

[Introduce Yourself]

Hi, my name is Tilas and I'm an artist from Yukon, Canada! I recently got into Affinity Designer because I love to vector, and it's just so much easier and more fun than Inkscape! I'm hear to learn all about that AD can do. :) 

[Affinity Designer - How do I format it to print in 100% K only?]

Hello everyone!

 

I'm trying to make a coloring book, and I've made the pages using vectors in Affinity Designer. My pages are supposed to be only black and white. My printing company says I need to send them the files in .PDF format, in "K" color output only, but whenever I send them a file, they say that it's not set properly. I don't know what settings I'm supposed to use to achieve this. I've tried a few settings but nothings has worked.

 

 

I've attached the screenshot they sent me, and this is what they were explaining to me:

If you can have a look at the following screenshot, you’ll see that although I’ve turned off the black, there is still content on the page. That means the black was created with Cyan, Magenta and Yellow instead of K for black.

 

 

 

I'm so new with professional printing I don't know what to do or how to set up the page. When I look at the vectors in AD, the CMYK Sliders do say C0 M0 Y0 K100 so... am I messing something up in the export?

 

I've also attached my affinity file itself, if that helps.

 

Any help would be great, thank you!

P - Carcross.afdesign