Solved: <pre>public string decoder(string data) { string b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; char o1, o2, o3; int h1, h2, h3, h4, bits, i = 0; string enc = ""; do { h1 = b64.IndexOf(data.Substring(i++, 1)); h2 = b64.IndexOf(data.Substring(i++, 1)); h3 = b64.IndexOf(data.Substring(i++, 1)); h4 = b64.IndexOf(data.Substring(i++, 1)); bits = h1 << 18 | h2 << 12 | h3 << 6 | h4; o1 = (char)(bits >> 16 & 0xff); o2 = (char)(bits >> 8 & 0xff); o3 = (char)(bits & 0xff); if (h3 == 64) enc += new string(new char[] { o1 }); else if (h4 == 64) enc += new string(new char[] { o1, o2 }); else enc += new string(new char[] { o1, o2, o3 }); } while (i < data.Length); return enc; } public string d(int key, string data) { int i; string strInput = decoder(data); StringBuilder strOutput = new StringBuilder(""); int intOffset = (key + 112) / 12; for (i = 4; i < strInput.Length; i++) { int thisCharCode = strInput[i]; char newCharCode = (char)(thisCharCode - intOffset); strOutput.Append(newCharCode); } return strOutput.ToString(); } </pre>

Sounds trivial to me. What have you tried ? Why are you creating bitmaps that are too big, if you only want one pixel borders ? Christian Graus Driven to the arms of OSX by Vista. "! i don't exactly like or do programming and it only gives me a headache." - spotted in VB forums. I can do things with my brain that I can't even google. I can flex the front part of my brain instantly anytime I want. It can be exhausting and it even causes me vision problems for some reason. - CaptainSeeSharp