Wrap around non-square images

[philipt18]

I have an image I want to wrap around in Publisher 2, with a section of the image which I want text to flow into. I've deleted that section, which should make that area transparent, but in Publisher when I import the image, the transparent area is black. I want to change the wrap shape so the text flows into that area, but as it's black I can't see the text. How do I get it to be transparent like it should be? I've tried this with both TIF and PNG files.

[v_kyr]

1 hour ago, philipt18 said:

... I've deleted that section, which should make that area transparent ...

How did you deleted that section in/with which tool and how did you saved/exported as PNG? - You can usually easily see if a saved PNG file has and keeps transparency areas when opening that with/on some non white background image previewers etc. So you can easily detect if the appropriates image viewers BG color shines through or not.

1 hour ago, philipt18 said:

... but in Publisher when I import the image, the transparent area is black. I want to change the wrap shape so the text flows into that area, but as it's black I can't see the text. How do I get it to be transparent like it should be? I've tried this with both TIF and PNG files.

Hard to tell if it is due to your PNG (if it doesn't transport and have transparency) or if it is due to some Publisher setup (aka some black BG area in APub or the like). - You best attach your PNG file here and also show some screenshots of your overall Publisher doc setup & layers etc. So people can better see what you did and where the possible culprit might be.

[philipt18]

Oddly, when I take a 327K TIF file, and delete part of it, it jumps to over 18M. If someone can explain how I can prevent that, that would also be helpful. I'm guessing that the 1bit TIF I had cannot remain 1bit when it need transparency. In any case, I've uploaded the file. I scanned this image, and cut out the bottom left corner using Preview. I simply selected it and hit delete.

sample.tif

[firstdefence]

There is no support for 1bit files: 

 

[philipt18]

So I wasn't able to create a usable image in Preview, but in Affinity Photo I was able to convert it to a palletized image that wasn't much bigger, and was able to preserve the correct alpha channel. I used the following settings when exporting: