Unlock Transparancy

[Gary I]

How do you unlock transparancy

[Bri-Toon]

Assuming you are using Photo, you probably have "Protect Alpha" checked off. Uncheck it when you have the brush tool selected.

[Gary I]

I don't understand.  I'm using windows 10 and Fastone.  Is the transparency a function of Affinity or another program?

[Bri-Toon]

I was referring to Affinity, and I assumed you were as well. We can't help you with Fastone Image Viewer since this forum is only on Affinity products.

[Butler To Cats]

A few options while trying to guess what you mean (you might want to post more detail on your problem, preferably with examples, if none of these addresses your question):

 

If you have created a transparency mask in Affinity (either Affinity Photo or Affinity Designer) by dragging one layer onto the thumbnail of another layer (in the layers panel), you can right-click on the mask thumbnail image in the thumbnail and select Release Mask (note: you must right-click directly on the thumbnail, not on the general layer area). I think the Mac uses Ctrl-click as an alternative if you do not have a two-button mouse?

 

To create a new blank file with transparency in Affinity Designer or Affinity Photo, be sure to tick the Transparent Background checkbox.

 

To erase areas of an image in Affinity Photo, you can use selection tools and the Delete key on a keyboard, or the various eraser tools as shown below (and other techniques such as masking).

In Affinity Designer you can use the Pixel Persona and the Erase Brush tool to erase areas from an image or object (and masking and no doubt other techniques).

 

 

To save a file with transparency, you need to export in a format that supports transparency (such as PNG-24 - Affinity automatically recognises and includes transparent area information in the edited image), and not export in a format that does not support transparency (such as JPG/JPEG).

 

How you would set up FastStone viewer to show transparency in the exported image, I also have no idea (I prefer IrfanView as my image viewer) - you might have to ask FastStone.