Hi, _sometimes_ ;-) I get data corruption with PDF files. After uploading a PDF file I get from the ZServer a file which is shorter than the first one. It's corrupt. The served file does not start with '%PDF-1.2^M...' for a PDF file. The original file length in this case was 482376 bytes and ZServer was sending me 458752 bytes. It should be the same length! :-) The content type ist always 'application/pdf' I've done the same steps frequently: - file upload: PDF Files - control the value of Content Type (application/pdf) Sometimes the PDF file ist corrupt - sometimes not! ;-) The same seems to appear with *.ps.gz files. We are using Zope 2.1.6 Any hint? The working PDF File (German: LinuxTag 2000-07-01 Stuttgart "Performante WWW-Umgebungen mit Zope") you can find under: http://www.lightwerk.de/zope/ Regards, Veikko -- Veikko Wünsche vw@lightwerk.de http://www.lightwerk.de/