Hi Ian,

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I can upload some PDFs but not others
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I don´t know ADDT´s ASP version, but I´m sure it handles the file upload procedure similar to the PHP version.

Maybe your server settings have some sort of "maximal filesize" restriction defined, means that files exceeding a certain filesize are rejected ?

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What does the file upload extension look for in a file?
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I´m sure it will just check the file extension, like the PHP version does.

Cheers,
Günter Schenk
Adobe Community Expert, Dreamweaver