Help me to implement code compress file .

[vampire1986]

Hi all. I have project compress file using C#. I'm using name space IO.Compression and i saw this code on Internet but it is compress to file bigger than source file. Can you help me, please.Thanks for your help.

public void CompressFile(string inputFileName, string outputFileName)
{
byte[] buffer = new byte[4096];
if (File.Exists(inputFileName))
{
using (FileStream inputFile = File.Open(inputFileName, FileMode.Open), outputFile = File.Create(outputFileName))
{
 
using (GZipStream gzip = new GZipStream(outputFile, CompressionMode.Compress))
{
int n = 0;
while ((n = inputFile.Read(buffer, 0, buffer.Length)) != 0)
{
gzip.Write(buffer, 0, n);
}
}
}
}
}
 
 
public void UncompressFile(string inputFileName, string outputFileName)
{
byte[] buffer = new byte[4096];
if (File.Exists(inputFileName))
{
using (FileStream intputFile = File.Open(inputFileName, FileMode.Open), outputFile = File.Create(outputFileName))
{
using (GZipStream gzip = new GZipStream(intputFile, CompressionMode.Decompress))
{
int n;
while ((n = gzip.Read(buffer, 0, buffer.Length)) != 0)
{
outputFile.Write(buffer, 0, n);
}
}
}
}
}