I realize that many people use Canva to customize their own digital invitations for gatherings large and small, so I will be adding a Canva Templates to my collection over the next few months. And, of course, they are free.
To use, save image to your device. Open Canva.com or the app, and choose "Invitation (Square)" > Blank, and then click on the "Uploads" icon (or camera icon in app) to upload the image from your camera roll or computer. You are ready to add text with all the details of your Halloween party. (These images work best for texting your invitations rather than printing.)