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Attachments File Type restrictions

OneFreeBird
New Here ,
May 21, 2020 May 21, 2020

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Hi, I am new to Acrobat programming, sorry if I am missing something. We are disributing fillable PDF to public. Which they can fill and submit online to web server, web server receives it as complete PDF and saves it to the disk. Users can add attachments to PDF, is there a way to restrict what file type they can add or in general looking for suggestions how others handling attachment security within PDF?

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Comment markup and annotate , PDF forms

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