Request for monitor pixel density (PPI resolution) setting

[Clau_S]

This is my first message so hi everybody.

I want to leave Photoshop for Affinity Photo. As for my needs a screen resolution setting is required.

As a painter I use to study and prepare my works through photo manipulation. So I have to check them at the actual size (where actual should mean the print size, but since I am the "printer", it's the drawing/painting size). I also use actual size to take some measurements directly on the screen so I can quickly report them on paper. As such a true, accurate actual size is very important for me.

Affinity Photo actual size is anything but actual, 'cause without a pixel density value (which changes from screen to screen) it can't be calculated. Instead actual size is really accurate in Photoshop. Nothing fancy. It's just that it takes into account both image print resolution (the document own PPI value) and screen pixel density (you set it on preferences as you can see from the attached image) to calculate the right zoom factor and rulers scale..

There are some workarounds you can apply in Affinity photo:

1) You can set the image PPI resolution to that of the screen and view the image at 100%. This way rulers will be ok, but you have to resample the image to make it respect the sought-after size. (Absolutely no way!)

2) You can do some math (or empirical tests) to find the right PPI setting that will show the correct size for actual size without resampling. This way you'll see the image at the right size but rulers will be out of scale.

3) You can do some math (or empirical tests) to find the proper zoom factor leaving the image unaltered. This way both actual size and the rulers will be ok, but basically you're doing manually what Photoshop does automatically and the annoying thing is that this way you cannot use the shortcut for actual size. You have to re-set that zoom value manually every time you need it. With such a simple setting like screen resolution, Affinity Photo could calculate it automatically and give an accurate on-screen representation. 

Sorry for the length. This is not my language and I hope I made myself clear.

Edited May 16, 2020 by Clau_S

[Jens Schmidt]

Does the developers of Affinity any idea what is written here in the forums??

[Pšenda]

1 hour ago, Jens Schmidt said:

Does the developers of Affinity any idea what is written here in the forums??

Yes.

[walt.farrell]

1 hour ago, Jens Schmidt said:

Does the developers of Affinity any idea what is written here in the forums??

Yes, but they usually do not respond in the Feature Requests forums (where this topic exists). In this part of the forum system they usually just read and make note of the functions users are asking for.