How to change lpi settings in PDF from 85 to 150

[defaultyt2a6qzhqn3w]

I don't think anyone can help me but I wanted to try.

I don't know why but, when I go in advanced settings in PDF when I want to print the file. 

It says ink management and it says Proces Cyaan, Magenta, Yellow and black. But when I want to change the frequency from 85 to 150 LPI it stays the same. How can I change this. This is so frustrating me.

Before it worked to do it, unfortunately it is now not working anymore I have no idea why.

Please help!

 

[Test Screen Name]

Please send a screen shot - not a photo of the screen.

[defaultyt2a6qzhqn3w]

Why what does it matter? You see clearly on the picture what I mean. 

[Test Screen Name]

I can see what you think is important, but I can't see the other stuff that I think is important. Never mind.

[defaultyt2a6qzhqn3w]

I am now home. I will try to make a screenshot tomorrow. Do you think you know what I mean? Is there a possibility to make a video and show it to you?

[defaultyt2a6qzhqn3w]

Please check the screenshot, when I change the lpi to 150 and save it still shows the same 85 after opening te tap again.

[Test Screen Name]

You can only set linescreen for a PostScript printer. All other printers will print in generic, via RGB.

[defaultyt2a6qzhqn3w]

Before I could change to 150 but I don't know how I did it. There should be a way to change. 

Because I need to print a picture with text on it. The text is small, so if I print is not very clear. So the quality is already 1200 dpi, but the text need to be more clearly 

[Test Screen Name]

1. You say "before". Before what? Is it a new computer, a new Acrobat, a reinstalled system, a different printer...?

2. What is the exact printer model? The driver is a generic one and does not tell us.

[Brad @ Roaring Mouse]

The ability to change line screens is dependent on the ability of the SPECIFIC (usually Postscript) printer. From your screen grab, you have a universal printer driver selected, so probably will not accept line screen changes as it doesn't have specific information about your printer's capabilities. Even if you can change the setting in Acrobat it doesn't mean the printer can (or will) do it. For instance, my Xerox PS printer has what's called a Halftone Lock (in its printer driver settings) which ignores any instructions in the print stream to change the line screen, as the printer's own halftone screen is optimized for best results.

Even if your printer is a one that allows overrides, the screens won't change unless you have selected "Emit Halftones" under Postscript Options.

What was your printer driver/system when you were able to do this before?

What is your EXACT printer?