XnView Software

Right, well I thank you for your many answers and ideas. You have have helped me.
You know, I think it may be working as expected now.

But, there is a real problem in what image viewer is used. The new Windows 10 image viewers are worse than the old Paint program.
(how does Microsoft constantly ...

No switching the files does not work. The entire image is cropped to the size of the watermark. No not right.

Yes, the watermark is placed in front and is transparent. That seems to work.
But some of the watermark is become lost (covered??) in the white space, as I showed in the image. The left ...

That is a good idea, but it causes a very strange effect.
From my experience with this tool, -wm commands must be followed with the watermarked file. Otherwise it uses the main image as the watermark.

HI, thanks again.
I don't know what you mean "Exported". That is Windows shell command I am using as a test.

Maybe it is the image viewer I am using. Do you see how that corner of the watermark is "gone"?

Still, if someone knows how to use the TRANSparency commands on the command line, that ...

Yes, I have watermarked that image you in my example, and the watermark appears. Seems like transparency is what I am looking to implement.

When you say Transparency, what can I use on the command line?
I see this, but what values do you use?

-add_alpha value : Add alpha channel (24bits)
-merge ...

Hello, thanks for your response.

My question is more about Background. When I see a raw image, the back ground is white. Now, when I open that image with Xnconvert (the UI) it does this:
(See the image attached.)

XnConvert places a pattern on the white space. Is there a way to do that with the ...

I have written a utility that calls Nconvert in shell commands. It works, however the images white space causes the converted WATERMARK'ed images to be partially invisible. That is the watermark partially is hidden by the white space.

When I use the UI of XnConvert on the same, I see that ...