[Affinity Designer, how do I get better export quality for poster print?]

As stated earlier, the printshop is asking for PNG. I don't konw, why they ask for PNG.

[Affinity Designer, how do I get better export quality for poster print?]

A Gaussian Blur Effect and a Outline Effect did the trick for me. Thank you for your replies. 

[Affinity Designer, how do I get better export quality for poster print?]

Yes, they ask for png specifically . I also got printed posters already and at 300 dpi the lines look rough. 

[Affinity Designer, how do I get better export quality for poster print?]

Hi,

I am struggling with the export quality of a vector graphics to PNG. I have a vector graphic with fine lines (example attached, not the actual file) and I want to print it on a poster (50 cm x 70 cm). I use the recommended settings of the printery (300 dpi). But when I export the file to png, the lines look very rough.

When I go to pixel persona, enable the "pixel view mode" and zoom in to 1000 % I can already see, that the lines are rough. 

I gets a bit better, when I crank up the DPI in document settings to 1000, but the printery won't accept files with 1000 DPI.

How can I export the file to get a razor sharp print?

Tanks

André 

sample file.afdesign

[Exporting a PNG takes forever, same file on MacOS takes 1-2 seconds]

I found the problem. I had much higher DPI settings on the Windows machine. 

[Exporting a PNG takes forever, same file on MacOS takes 1-2 seconds]

When I export a file to PNG on my Windows machine it takes minutes. The same file takes 1-2 seconds on my MacOS Laptop. I run the latest version of Affinity Designer on both machines.