A halftone effect translates tones into repeated dots or lines. It can give a photograph a print-inspired look, but the result depends on the source image as much as the preset.
Start with a readable subject
Choose a photo with a clear focal point and useful contrast. In NexTools Halftone Studio, preview a dot pattern, then change dot size and contrast until the subject is still recognizable. A portrait with very dark hair may need a gentler setting than a simple product silhouette.
Check at final size
View the export at the size where a buyer will use it. Tiny dots can merge when a design is reduced; large dots can erase facial detail. Compare a small preview and a full-resolution view before exporting. Keep the original photo so you can try another screen setting without degrading a previous halftone export.
If you submit the result to a stock marketplace, check technical and rights requirements for the source photo as well as the edited artwork. A visual effect does not remove those obligations.