XnView Software

Very often I have to take a black and white image and change the white background to transparent so it will place correctly in my publications.

I wish XnView had a way I could magic-wand an area of an image and make it transparent.

Perhaps a way to make the background of your PNG image transparent:
1. Open your image
2. Convert the image into a colour mapped image with e.g. 16 colours (Image > Convert to Colours...", 16 colours)
3. Open colour palette of the image with "Image > Edit Palette..." menu
4. Choose the background colour and check "Transparency". Confirm your change with "OK"
5. Save your image under a different name in a format that supports colour palettes (e.g. PNG, GIF)
--> Your image should have a transparent background, now.

Please note that in the steps above I've used the terms of XnView Classic. I'll replace these with the terms used in XnView MP tonight.

Related topics (XnView Classic):

• How to set PNG transparency color?
• Free Adobe Photoshop Plug-Ins
• Cant change background image complitly