PDF Exports at different DPI to Document Setup

[pascau]

I'm trying to export a PDF of a design I made for an album cover. It has to be at 300 DPI. I imported the templates provided by the company at 300 DPI, and made the design on them. In 'document setup' it says the image is 300 DPI and 3488 x 1941 px. Whenever I try to export a pdf, it comes out as 72 DPI and 843 x 466 pt.

 

I'm pretty new at this and have no idea what could be going on. Help would be greatly appreciated :(

 

Thanks!

[TonyB]

Can you post the PDF template here and I will have a look.

[MattP]

I'm not an expert, but I was under the impression that the PDF itself doesn't have a DPI (only a notional 72dpi) and measures everything in points by default. However, any pixel data in that PDF should have been exported correctly and should be placed at 300dpi. Is that the case here? Have you produced a 72dpi PDF document (which incidentally does map to the number of points you mentioned have been given for width and height) but with 300dpi data in it? That's the output I think I would expect and it means there's nothing to worry about :)

 

(3488 pixels / 300 dpi) * 72 dpi = 837pt

(1941 pixels / 300 dpi) * 72 dpi = 466pt

 

Let us know!

Matt

[pascau]

Hi Matt,

 

That makes sense! I was able to use the pdf for the submission. I figured it was probably something I didn't understand, as I'm not really a graphics guy.

 

That said, Affinity is super easy to get going in which is great :)

 

Thanks for you help.