1. Open the WPS demo and create a new blank PPT. In File-Page Setup-Paper Size, set the width to15cm and the height to10cm.
2. Click on the orange pane on the right and select "Tools-Transfer Pictures" to transfer mobile phone pictures to PPT through QR code. After making and processing the pictures on the mobile phone, adjust, synthesize and beautify the pictures, and then upload them to WPS for demonstration.
3. Stretch the picture to fill the background and keep the aspect ratio of the picture. You can also directly select a picture for background filling. After the background is filled, select Picture Tool-Picture Effect-Soft Edge -25 Points.
4. Create another PPT page with the same size, select "Grid and Reference Line" in View, set the grid spacing to 2 grids per cm, and check the grid lines.
5. In "Insert-Shape-Rectangular Border", set it as a square with a side length of 1 cm, the border color is red and the line width is 2 points. Copy 6 squares and align them horizontally according to the grid lines. The spacing between the first square and the second square is 1 grid. Select them and choose Align-Distribute Horizontal.
6. Create a new rectangle with a red border, a line width of 2 points, an optional dotted line and a size of 4*3 cm.
7. Insert a picture again, resize it and put it in the left margin.
After completing the above steps, the production of electronic postcards is basically completed.