- DPI = Dots Per Inch
- 1 inch = 2.54cm
- Double-column article on A4 paper (21cm x 29.4cm)
- Margin is 2cm, column separation is 1cm
- One column is ≈(21 - 2x2 - 1)/2 ≈ 8cm
- Figures should be rendered at 300dpi
→ 8/2.54*300 ≈ 954 pixels ≈ 1000 pixels wide
- If figure has been saved in bitmap format (e.g. PNG), you should ensure it has sufficient resolution
- If figure has been saved in vector format (e.g. PDF), you don't care about resolution
Vector or bitmap ? If you have only a few elements on your figure, vector might be a good idea. If you have many small elements, bitmap might be a better option (smaller file size, faster rendering).