A-PDF :: Affordable PDF Tools

How to protect email attachments (PDF files) from changing, copying, form field filling-in or signing?

Return KB main page


When I send attachments (e.g., quotations, bills) to others, I am worried that someone might modify them. That could cause loss. So how can I prevent this?


Well, you can use A-PDF Mailer (free download here) to set encryption for the attachment files. With this software, you can not only add password for the PDFs, but also set restrictions for modifying or copying the attached files.

1. Launch the program and select Microsoft Excel file with e-mail address list;

2. Add attachments to the list, PDF files or other format files like Word and PPT;

3. Define "Subject" and "Email Body";

4. Click "Setting" button and select "Security", then you can define security options: require a password to open file, printing, copying or modifying;

5. Click "OK" and then batch send e-mails.

add encryption to retain restrictions

Related products

We always like improving our products based on your suggestions. Please send your feedback (or ask questions) to us in the contact page.

Return KB main page