#include <iostream>

using namespace std;

int main()
{
    int r, c;
    cin >> r >> c;
    char pl [r + 2] [c + 2];
    for (int i = 0; i <= r + 1; i++)
    {
        for (int j = 0; j <= c + 1; j++)
        {
            pl [i] [j] = '.';
        }
    }
    for (int i = 1; i <= r; i++)
    {
        for (int j = 1; j <= c; j++)
        {
            cin >> pl [i] [j];
        }
    }
    for (int i = 1; i <= r; i++)
    {
        for (int j = 1; j <= c; j++)
        {
            if (pl [i] [j] == 'S' && (pl [i - 1] [j] == 'W' || pl [i] [j - 1] == 'W' || pl [i] [j + 1] == 'W' || pl [i + 1] [j] == 'W'))
            {
                cout << "No";
                return 0;
            }
        }
    }
    cout << "Yes" << endl;
    for (int i = 1; i <= r; i++)
    {
        for (int j = 1; j <= c; j++)
        {
            if (pl [i] [j] == '.')
                pl [i] [j] = 'D';
        }
    }
    for (int i = 1; i <= r; i++)
    {
        for (int j = 1; j <= c; j++)
        {
            cout << pl [i] [j];
        }
        cout << endl;
    }
}