GZipStream problem

[zeeShan anSari]

hi all, for compress the pdf file i use below code:

byte[] bufferWrite;

        FileStream fsSource;

        FileStream fsDest;
        GZipStream gzCompressed;
        fsSource = new FileStream(@"C:\\Invoice.pdf", FileMode.Open, FileAccess.Read, FileShare.Read);

        bufferWrite = new byte\[fsSource.Length\];

        fsSource.Read(bufferWrite, 0, bufferWrite.Length);

        fsDest = new FileStream(@"C:\\Invoice.zip", FileMode.OpenOrCreate, FileAccess.Write);

        gzCompressed = new GZipStream(fsDest, CompressionMode.Compress, true);

        gzCompressed.Write(bufferWrite, 0, bufferWrite.Length);

        fsSource.Close();
        gzCompressed.Close();
        fsDest.Close();

pdf file compress successfully but without extension(.pdf) .......where is problem?

[Lost User]

zeeShan anSari wrote:

pdf file compress successfully but without extension(.pdf) .......where is problem?

You named it .zip, just stop naming it .zip ? On the other hand, renaming a gzip file to .pdf doesn't (to my knowledge) suddenly make it a pdf file, it just makes your computer think it is.

[zeeShan anSari]

Thanks.........u r right :cool:

[Lost User]

harold aptroot wrote:

(to my knowledge)

Are you not sure about it ?

[Lost User]

No, are you? Some PDF readers may (in theory at least) decide to detect it and decompress the file before loading I wouldn't claim anything with full certainty without testing, and I'm not about to test every known PDF reader with gzipped pdf's

[Saksida Bojan]

Today I have read CutePDF features, and it seems PDF supports commpresion. But it does not uses any zip, rar or any other container based compresion