Merge Image as Background (Flatten)

When user create design in Photoshop and adjust transparency with multiple filter, layer effects, etc., these effects may not be printable.
Hence, user should flatten the image and create printable data that includes all the desired effects.

Click Menu > Layer > Flatten image, save as Photoshop PDF, and upload it.

If texts layers were saved when the layers are actively in used, it is possible that font conversion problem may rise when saving the file in PDF.

Please ensure to convert font layers into image (Select Text Layer > Right Click > Rasterize Type) and save.