Use a Meme Generator
Many online meme generators support speech or thought bubbles that overlay an uploaded or stock image. Services like SuperLame, for example, include more than one option for these bubbles.
Use Microsoft Paint
Microsoft Paint on Windows 10 remains a free, reliable standby. The modern version of Paint includes built-in callouts for speech and thought bubbles. Just open your favorite image and drag a call-out on top of it, then add a text box overlaying the callout.
Use Photoshop
Adobe Photoshop isn’t cheap — subscriptions to Creative Cloud can cost between $15 and $50 depending on your student status and what you elect to acquire — but this program is the gold standard for image editing. Hover over the Rectangle tool to expose a callout, then from that submenu, select Custom Shape. Photoshop, in its default configuration, will open a menu above the image to support the Custom Shape tool. Freehand-draw the shape or click the Shape drop-down to pick from nearly two dozen preinstalled shapes. Use the Custom Shape menu to add fill and stroke to the callout bubble and use the Text tool to add text and format text.
LibreOffice Draw
A part of the LibreOffice family, which is a competitor to Microsoft Office, LibreOffice Draw includes an easy-to-use drawing menu that supports dynamic resizing of callout boxes. Open an image in LibreOffice Draw; then click View > Toolbars > Drawing. The callout menu in the Drawing toolbar reveals seven different callout templates. Click one then draw the callout over your image. Click anchor points to adjust the callout. Use the yellow anchor to position the bubble near the relevant character’s mouth. Type your message inside the thought bubble. No need to insert a special textbox overlay. Use the Properties menu on the right sidebar of the application window to modify the callout’s character, paragraph, fill, transparency, shadow, and stroke.
