php - Acrobat and/or Reader Error ".tmp" when using fdf -

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i'm populating pdf's via fdf (& php) , part works fine users getting either "acrobat cannot open "acrxyz.tmp" (or "reader cannot open "xyz.tmp", in cases).

i've found info possible causes surrounding: apache "mod-deflate", ie cache , volatile memory & "fdf_close" among other things..

some config info: it's on apache 2 (the mod_deflate module), don't have fdftk installed can't fdf_close. fdf called include. , these through https ssl

users on ie anywhere ie 6 ie 8 using acrobat 8 or reader 8.x or 9.2

most users pdf without problem but.... suggestions narrow search server setting user-config etc. or solutions helpful?

here's header info if helps // header required explorer send file acrobat viewer header ("content-type: application/vnd.fdf"); // prevent caching header("cache-control: post-check=0, pre-check=0", false); header("pragma: public");

thanks!

not sure if end-all or complete answer updating (and i'm sure solution doesn't come without rasing other issues)

one of major culprits machine ie 6 on it.

in effort trouble-shoot went down mod_deflate route

changed : 

# msie masquerades netscape, fine browsermatch \bmsie !no-gzip !gzip-only-text/html

removed !'s reverse !no-gzip !gzip-only-text/html , (after restart) machine ie 6 no longer gets errors.

i'm going want target msie 6 browser.

as said i'm sure there reasons not of @ possible , wheels come off tomorrow i'll see happens.


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