Changing Document size - dpi

[Makkah]

Hi All

I am very new to Affinity photo and have learned much by searching this forum.

However with this task I am stuck so impelled to ask for advice.

 

I am trying to change my photo dpi from 72 to 100 and higher.

 

I use "Document Resize" and it does change but when I export it to a desktop folder the "Info" indicates that it is still only 72 dpi.

 

I am after best quality of course, so from reading here I am using "Lanczos 3 (non separable)

 

I have tried with the resample box checked and again with it unchecked to no avail.

 

Where am I going wrong ?

 

(2015 macbook Pro)

 

Andy

[Callum]

Hi Andy,

 

I have just tried exporting at 100dpi after resizing my document and it has worked fine. Please could you try opening the file in preview and then going to tools and inspector to find the DPI?

 

C

[Makkah]

Hi Callum

 

Yes that is how I am checking the Dpi after exporting, but still says 72 dpi

 

Andy

[Makkah]

I managed to change the dpi by exporting through "Export persona"

unsure as to why it will not thru export from the File drop downs ?

 

what is the best method for quality to increase dpi of a 72dpi image for a printer to the the suggested 150 dpi ?

 

e.g. should I use Bicubic or Lanczos 3 (non separable) ?

[yakk]

Hello Makkah

 

You should have a look to this thread

 

HTH

[Makkah]

thanks Yakk HTH