# BEGIN PDF Watermark Redirect
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^wp-content/uploads/(.*\.pdf)$ /index.php?pdf_proxy=1&file=$1 [QSA,L]
</IfModule>
# END PDF Watermark Redirect