Change Layer Dimension

[worktocode]

Hello everybody, 

i have a challenge upon me and I’m thinking if there is a faster way.

As you can see on the screenshot, I have 68 Layers. Every single layer was a cut out piece from a photo. Now I want to export every layer separately as a PNG with transparent background. 
What I realised is, that after I duplicated the selection, it changed the dimensions from the original photo dimension (3042x4032) to the size of the cutout. 
If I export the layers s slices, it export the layer in the new dimension and not in the canvas dimension. 
I saw that in the export mask I can change the dimension, but is there any faster way to change the dimension for every layer or is there any option to avoid that for the next time?

Cheers  

// Ryan

[DWright]

Hi @worktocode,

Welcome to the forum

There is no way that you can do this for multiple slices you will need to do this manually for each slice.

[NotMyFault]

On 9/25/2022 at 1:28 PM, worktocode said:

Now I want to export every layer separately as a PNG with transparent background. 

Unsure if i understand this request correctly. do you need the slices as cut-out, but in the original position and size, and the rest of the file transparent, extending to the original canvas size? 
 

[worktocode]

4 minutes ago, NotMyFault said:

Unsure if i understand this request correctly. do you need the slices as cut-out, but in the original position and size, and the rest of the file transparent, extending to the original canvas size? 
 

Yes exactly, that is what i wanted to say.

[NotMyFault]

Ok, unfortunately export persona does not help in this case.

If you need such exports more than once, you may try to optimize your document / workflow for that use case.

Macro recording and keyboard shortcuts may help a bit:

• in case the slices where created directly from layers: 
  • for export, activate one layer after the other, and use regular export in Photo persona (full document)
     
• in case you want to define export areas manually:

1. rasterize / flatten the file (or a copy)
2. create a rectangle for every former slice and use it as mask
3. activate one slice at a time and export (macros help to reduce clicks)

again, there is no magic bullet in Affinity apps to do this fully scripted.

 

[Paul Mudditt]

Perhaps I am not understanding what you need but here goes. Don’t use export persona.

Use Document -> Export -> PNG -> (share to photo album or save to cloud area) by turning off all layers and enabling them one by one. 

Quick example, all are transparent PNG files.