I went to Filter > Texture > Inkblot to give a blurred effect to a line.
That works fine, however when I convert it pdf the line is solid.

Also, I changed the mode to "screen" but in the pdf the line is solid.

Any thoughts on how to keep the filter effect when converting to pdf?
thanks
a

You have to click on the rasterize filters options and give a decent resolution to it in the save as pdf panel.

I did...I checked rasterize filter effects at 184. Is that number wrong?
thank you for the help
a

I just tried again at 370 and got a better result. what should the number be at?

300 dpi for A4 text and 600 dpi for photography are commonly used resolutions, however the result depends on the printing used too.
A regular paper may not be capable for 600 dpi.

Dear Lazur URH,
thank you for your thoughts.
I got inconsistent results...at one point I saved to file at 450 and it was fine. I did it again later and it wasn't.
fortunately I was just experimenting so I let it go, however in the future this question may come up again.
best
a

Hello Ait,

keep in mind the original size of your image as well the resolution.
By opening the document's properties tab (Shift+Ctrl+D) you can set up the basic units in mm or inches.
Maybe the part was too small that didn't get exported well at 450 dpi?

Good luck!