fdf_create

For fdf_save you need to provide the complete path, such as :fdf_save($outfdf,"c:/inetpub/wwwroot/temp_sites/fdf/outtest.fdf"); and not only outtest.fdf.

<?php$outfdf = fdf_create();$volume = "test";fdf_set_value($outfdf, "volume", $volume, 0);fdf_set_file($outfdf, "http://localhost/webapps/volume.pdf");Header("Content-type: application/vnd.fdf");fdf_save($outfdf);fdf_close($outfdf);?>This works for IE 5.5+  It will populate the fields and open the resulting pdf for you, without having to create an fdf file and adding the open script to the pdf...

I thought the following might save someone a lot of time. The example fdf snippet above, namely:<?php$outfdf = fdf_create();fdf_set_value($outfdf, "volume", $volume, 0);fdf_set_file($outfdf, "http:/testfdf/resultlabel.pdf");fdf_save($outfdf, "outtest.fdf");fdf_close($outfdf);Header("Content-type: application/vnd.fdf");$fp = fopen("outtest.fdf", "r");fpassthru($fp);unlink("outtest.fdf");?>will not work (or there's at least a big possibility it won't) in IE (version 6 sure and I suspect lower versions as well) if you have session.auto_start on. Apparently, setting a cookie before feeding the fdf to the browser somehow messes it up. It works fine in Netscape though. I spent days on Google before I found a post somewhere about someone else having the same problem. The solution? Well, I created a separate directory in the web tree and turned session.auto_start off just for that directory like this:<Location /new_directory>    php_admin_flag session.auto_start 0</Location>Hope this was useful to somebody.

Header("Content-type: application/vnd.fdf"); simply does not work in IE. The easiest method to automatically load the fdf file is to open the 'pdf' file via php. With use of Acrobat document -> page action -> page open -> add -> javascriptand paste the following into the pdf file:this.importAnFDF("my_fdf_file.fdf");This will auto-load the fdf contentsCheers Mike