How are people finding old vintage poster artwork that's good enough to print?

[PrintingInLincs]

Hi,

I'm looking for some help in finding old vintage poster artwork which is good enough to print.

We find high definition JPEGS online but then when we turn it into a pdf & print it it is coming out slightly pixellated on a xerox 550.

We've tried vectorizing the artwork online & also editing in photoshop but can't seem to get "sellable" quality.

The vintage posters seem very popular online so thinking we could try this & actually get some use out of our printer.

Thanks for any help.

 

[Mulzani]

Try to increase ppp, then add some noise

 

[gordo]

Assuming they're copyright free, you might try Gigapixel which uniquely uses AI techniques to upsample images:

https://topazlabs.com/ai-gigapixel

 

[PrintingInLincs]

Wow thanks Gordo, that's exactly the kind of thing i'm looking for. I'd never be able to find the right words to stumble across that in google.