23 February 2020

PNG with transparent background from a JPG

Many digital stamps are available only as JPGs which have a solid, white background. The Maker, as well as other digital cutters and many printers, would want to draw or cut the background, so that won't do. Two choices, either see if the artist has a PNG with transparent background available or convert the JPG. If the first isn't an option, converting isn't hard but does require some software. Adobe Illustrator and Inkscape are two that can do the job easily and Inkscape is FREE.


Open the digital stamp file in Inkscape and accept the defaults on the opening screen. 


With the image selected, choose Path > Trace Bitmap from the top menu. 

In the box that pops up, take the check off Smooth, check Remove Background, and check Live Preview. If it's a black and white line drawing, you can change Scans to 2. If you have a full-colour image, you'll want to set the number of scans to the number of colours in the image. Leave the rest at defaults. Click OK. If there are a lot of colours and scans or it's a big image, it might take a while for the OK button to light up again. If it's small and black and white, the button will only grey for a couple seconds (don't blink or you'll miss it). When the OK button is back, close this window.


Your image will have duplicated for the number of scans or colours. With a black and white image, there will be only two. Move the top one to the left and delete the original in the centre.


Save the remaining image as a PNG by choosing File > Export to PNG.


The window to save the file will show up on the right panel. Save the file to the place and name you want. You can leave the rest as defaults.


If you open it in an image editor, like Photoshop or Gimp (Gimp is a FREE application a lot like Photoshop), that displayes a transparent background (generally as a checkered background), you'll see the background is now transparent with only the line drawing. Ta da!

If you want better instructions and a visual of the process (but using a full-colour image), check out this video from PattyAnn:

No comments:

Post a Comment

Thank you for your comments. I do read every one. Your comments help me to grow as an artist. It warms my heart to see wonderful comments and constructive criticism.