Sharing confidential PDFs online can be a challenge, especially if the files contain private data. If you share a special offer with a client, maybe a contract or other files that have information that you don’t want to be shared with other parties, there are not many options available.
The best way to share your confidential PDF file is using a dynamic watermark. This will drastically reduce the chances of your document being shared with others.
Using FileDrop’s PDF Hosting you can enable this for any file.
How Dynamic PDF Watermarking Works
Upload a PDF file and enable the Watermark feature. Here we have a few settings to add the viewer’s IP, date and time, a custom text (company name, offer name, and so on), and also an email address.
The email address can be added only when the user is verified by a PIN they receive via email.
You can change the watermark color, position, opacity, and size.

Here is a screenshot of how it will look using the settings above. You can test it using this demo link.
The PDF file is loaded using the email, text, IP address, and date with the hour and minutes.

The process of watermarking the PDF with the viewers data is really easy, the FileDrop PDF Hosting is excellent to use when you need to share PDF files securely.
You can enable other security settings like:
- View limits
- Expiration date
- Set password access.
Register and share your PDF file.
FAQ
1. What is dynamic PDF watermarking?
Dynamic PDF watermarking is a security feature that adds unique viewer-specific information—such as email address, IP address, date, time, or custom text—directly onto a PDF while it’s being viewed. This discourages unauthorized sharing of confidential documents.
2. How does dynamic watermarking work in FileDrop?
Simply upload your PDF to FileDrop, enable the Watermark feature, and choose what information to display. The watermark is applied dynamically when the document is opened, showing viewer details directly on the PDF pages.
3. Can I require viewer verification before showing the watermark?
Yes. If you choose to include the viewer’s email address in the watermark, FileDrop requires email verification via a PIN. This ensures the viewer’s identity before granting access to the document.
4. Can I customize how the watermark looks?
Absolutely. You can customize the watermark’s color, position, opacity, size, and content, allowing you to balance visibility with readability while maintaining a professional appearance.
5. What additional security options are available for confidential PDFs?
In addition to dynamic watermarking, FileDrop PDF Hosting allows you to set view limits, expiration dates, and password protection—giving you full control over how and for how long your PDF can be accessed.
The Bottom Line:
One keeps you awake. The other gets work done.
A month of coffee: $150
A month of FileDrop: $19
Why not have both?


