Secure folder to store signatures obtained with Formidable Forms


I’m using Formidable Forms with the Electronic Signature Forms addon. When a signature is drawn and submitted, a PNG is saved to the WP media library – visible to the public. How can I protect these images? The Formidable Forms documentation has this snippet to store signature in a custom location:

add_filter( ‘frm_sig_upload_folder’, ‘frm_custom_sig_upload’, 10, 2 );
function frm_custom_sig_upload( $folder ) {
$folder = ”;
return $folder;

I can’t find a plugin that will password protect a specific folder though if I do set a custom folder. What can I do to make this work properly and store files securely?



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