Merge images has three modes. The first is vertical merge. The picture is merged into a picture from top to bottom. The second is horizontal merging, which is merged into a picture from left to right. The third is a fixed number of columns. If the number of fixed columns is 3, 3 pictures are merged from left to right.
Click inside first drop area to upload or drag & drop PPT files. Click inside second drop area to upload style master file, if you want to apply it to PPT files combined. Choose the format of resulting file. You may combine PPT into a PowerPoint presentation format or many other formats. Click "Merge" button.