• Remove Background from Image – remove.bg 
• Adobe Photoshop CC
• Corel PaintShop Pro (PSP)

Adobe Photoshop CC

Creating a Transparent GIF background using Adobe Photoshop CC

• Launch Photoshop CC
• Image (menu) > Mode > RGB Color  (because it is impossible to edit an image in "Indexed Color" mode)
• Select (menu) > All
• Window (menu) > Properties (make sure there is a checkmark beside Properties)
• Window (menu) > Tools (make sure there is a checkmark beside Tools)
• Properties (window) > Right-click on the layer > Duplicate Layer...
  • Hide (click on eye icon) the original layer
  • Lock (click on padlock icon) the original layer
• Properties (window) > Click on the newly created duplicate layer (that is not hidden or locked)
• In the Tools window, Right-click on the Eraser Tool > select Magic Erase Tool
• Click on the image (and the new transparent area should show as a checkerboard pattern)
• File (menu) > Save As... > CompuServe GIF  (or save as transparent PNG, but do not save as JPG)

or

• Photoshop. How to make image transparent - Template Monster Help

Corel PaintShop Pro (PSP)

• Creating a Transparent GIF background using PaintShopPro
  Corel Corporation
  
• Note:  JPG files cannot have transparent backgrounds.  A JPG converted to a GIF may not be able to have a transparent background.
  Please if there is a better way to do this, please .

Creating a Transparent GIF background using PaintShopPro 9

• Launch PSP - (PaintShopPro)

• File (menu)
  • Open
  • Browse
  • Open a graphic file
• Image (menu)
  • Palette
  • Set Palette Transparency
    • Accept whatever changes that PSP says is necessary
    • Set the transparency value
    • Proof (button) - A checkerboard pattern shows the area that will be transparent
    • OK
• File (menu)
  • Save As
  • Save as type GIF (or PNG) - (Make sure that you do NOT save the file as a JPG/JPEG)
  • OK
  • Replace existing file - Yes - (or you could give the file a new name)
     

Creating a Transparent GIF background using PaintShopPro 4.12

Launch PSP
View (menu)
    Color Palette - checked
Open a GIF
Select Dropper from the Toolbar
Right-Click on the background colour you want to be transparent.
Selections (menu)
    Select All
Selections (menu)
    Modify
    Transparent Color
    Tolerance 200
    Ok
File (menu)
    Preferences
    File Format Preferences
    GIF tab
    Set the transparency value to the background color
    Ok
File (menu)
    Save As
    Save as type GIF
    Ok
        Replace existing file - Yes