How to install post signature on Blogger

First, you'll need to decide whether you want your post signature to be left-aligned or centered at the bottom of your posts. Copy the code below of your preferred option.

Left Aligned

.entry-content:after {
content: url(YOUR SIGNATURE IMAGE LINK);
margin: 5px 0;
}

Center Aligned

.entry-content:after {
content: url(YOUR SIGNATURE IMAGE LINK);
margin: 5px auto;
display: block;
text-align: center;
}
  1. With your preferred format copied, go to Blogger > Theme > Customize > Advanced > Add CSS and paste the code in the box.
  2. Keep your Blogger Customize tab open and don't save yet. Go to PostImage and upload your post signature image.
  3. After it has finished uploading, copy the Direct Link to the image.
  4. Go back to your Blogger Customize tab from step 1 and paste your image link between the parentheses to replace YOUR SIGNATURE IMAGE LINK.
  5. Click Apply to Blog in the top right corner.
  6. Your signature is now installed, hooray!