Something I needed recently which I’ve wanted to blog. It’s fairly simple, and also documented elsewhere online, but as with most things I do technical blog wise, explanations work better with screenshots.
Example image, “tick.png” with a non-transparent white background:
If you don’t have it already, download and install paint.net. It is great and is to MS Paint what Notepad++ is to MS Notepad, though you need Windows 7 or above as a minimum system requirement:
http://www.dotpdn.com/downloads/pdn.html
Fire up paint.net and open the image:
Select the magic wand tool. You may need to adjust the tolerance setting shown, but for this example I kept it on 50%. Then click anywhere on the image’s white background:
Use Erase Selection from the drop down menu or just hit the Delete button:
So that what you end up with is your original tick symbol minus the white background:
Comments
5 responses to “Making png images transparent using paint.net”
this does not work. simply removing the white background will not work on bmp files. this tutorial is too simple. try and do some research..
Please accept a full refund for non-delivery. Any practical solutions and suggestions from yourself would be most welcome.
But HalfALive is correct. This does not work. I use bitmaps in a windows application on Windows 10 and when you make
the transparence as described, the background is always white.
Fair enough. But I did this post using Windows 7, some time ago. Things change. Over time this sometimes results in things no longer working as they once did. I’d be happy to re-visit this – PROVIDED the person making the request is not so supercilious and sanctimonious.
Thank you so much for your help 🙂