I must create printing "rewrite file" and put in field 4GL Program the object of the script of conversion in pdf of "vamsi".
From where I must create this object, from the "library"? from "program scripts"? or like?

This must be a program script of type "3GL (Without Stnd.Prgr.)". So, a function main() must be present. With the argv$() you can retrieve the arguments (input file, output file, etc.).

I had compiled my program script as "3GL (Without Stnd.Prgr.)" (tccitpdf) and i had insert in the field 4GL Program of the "Maintain Deviceb Data" the value tccitpdf, but when i try printing with this device i receive the following message:

Error: Can't read session or object (tccitpdf)

Thanks previous...

Error: Can't read session or object (tccitpdf)
Since its a 3-GL you have to add otccitpdf in the field 4GL Program of the "Maintain Deviceb Data".