Editing watercolour illustrations

[Hinkypunk illustrations]

Hello, I'll be grateful for any help I really struggle to get to grip with a very simple set of editing requirements... I've done a set of watercolour illustrations that I need to digitally cut out and separate from their watercolour paper background, and then save to send of to the printers.

I've worked out from YouTube how to use the lasso tool to isolate the image and put in a transparent background but then I'm stuck. I tried pressing 'save as' but that just saved the whole thing including the editing suit???

[v_kyr]

Hi,

if you already isolated the image and removed the paper background, so the Affinity document background is now transparent and you want to save the resulting image with transparency, then use the " File -> Export" menu to export the document as a JPG/PNG bitmap/raster file. In order to preserve the transparency (shine through background) use PNG file format.

[Hinkypunk illustrations]

I've isolated the image but how do I get a transparent background?

[MichaDE]

CTRL+J will copy the selection to a new layer. Then deselect the original one... 

[dutchshader]

Or invert the selection ctrl>shift>i and hit DEL