#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int n, m;
  cin >> n >> m;
  char a[n + 2][m + 2];
  int flag = 0;
  for (long long int i = 0; i <= n + 1; i++) {
    for (long long int j = 0; j <= m + 1; j++) {
      a[i][j] = '.';
    }
  }
  for (long long int i = 1; i <= n; i++)
    for (long long int j = 1; j <= m; j++) cin >> a[i][j];
  for (long long int i = 1; i <= n; i++) {
    for (long long int j = 1; j <= m; j++) {
      if (a[i][j] == 'S') {
        if (a[i - 1][j] == 'W' || a[i + 1][j] == 'W' || a[i][j - 1] == 'W' ||
            a[i][j + 1] == 'W') {
          flag = 1;
          break;
        }
      }
      if (a[i][j] == 'W') {
        if (a[i - 1][j] == '.' || a[i - 1][j] == 'D') a[i - 1][j] = 'D';
        if (a[i + 1][j] == '.' || a[i + 1][j] == 'D') a[i + 1][j] = 'D';
        if (a[i][j - 1] == '.' || a[i][j - 1] == 'D') a[i][j - 1] = 'D';
        if (a[i][j + 1] == '.' || a[i][j + 1] == 'D') a[i][j + 1] = 'D';
      }
    }
    if (flag == 1) break;
  }
  if (flag == 1)
    cout << "No"
         << "\n";
  else {
    cout << "Yes"
         << "\n";
    for (long long int i = 1; i <= n; i++) {
      for (long long int j = 1; j <= m; j++) {
        cout << a[i][j];
      }
      cout << "\n";
    }
  }
  return 0;
}
