[pdftex] a wrapper for using pdftex as a library call

[Thanh Han The]

Hi,

I am working on a wrapper in C so that application can call pdftex
via a library call. Can you please have a look at the proposed API
and comment on it if you find a potential problem? I attached two files:

test0.c: a minimal test file
test1.c: the same file with comments

Thanks,
Thanh