Sharing a PDF by email or a normal download link is easy. The problem starts when you need to control who can access the PDF, how many devices they can use, how long the link works, or how many times
Telegram PDF Protection: Allow Only Telegram Group Members to Access PDF Files
Sharing PDF files in a Telegram group is easy, but protecting those files is much harder. If you sell courses, CFA study materials, ebooks, training documents, exam preparation materials, reports, or other paid PDFs, you may not want everyone who
How to Protect CFA Study Materials from PDF Sharing, Reselling, and Unauthorized Downloads
A CFA exam study material provider recently contacted us with a very common problem. He runs a small two-person business that creates study and review materials for people preparing for the Chartered Financial Analyst (CFA) exams. His products include PDF
How to Limit a PDF to 1 or 2 Devices Per Customer, Create Secure Reading Links, and Prevent PDF Sharing
If you sell PDF ebooks, training materials, manuals, reports, or other digital documents, you may want each customer to read the PDF on only one or two devices. For example, you may want: Customer A to use the PDF on
How to Use the Invite User Function to Securely Share PDFs with Expiring Links and Device Limits
Sharing a PDF by email or a normal download link is easy. The problem starts after the recipient gets the file. Once a PDF is downloaded, it can be copied, forwarded, uploaded to cloud storage, or shared with other people.
How to Invite PDF Readers and Send Secure Reading Links
If you sell or distribute ebooks, PDFs, training materials, or other digital books, managing reader access can become difficult. You may need to give each customer a personal reading link, limit the number of devices they can use, and send
Is a Web PDF Viewer Secure? Can Anyone With the Link Open Your PDF?
If you sell or share PDF files online, you may have an important question: If I send someone a web PDF viewer link, can anyone with the link open my PDF? The answer depends on how the PDF viewer is
How to Automatically Send a DRM-Protected eBook After a Customer Places an Order
If you sell eBooks online, you may already have an order system that handles payments and customer information. But what happens after the customer pays? You may need to manually create a DRM user, limit the number of devices, create
How to Limit a PDF to 2 Devices and Stop eBook Sharing: Device Limit Per User or Per Book?
If you sell an eBook, training PDF, certification manual, or other digital document, you may want to give each customer access on 2 devices only. For example, a customer may want to read the eBook on a laptop and a
How to Make Large PDF Files Load Faster in VeryPDF Secure Web Viewer
A customer recently reported that PDF files were loading very slowly in the VeryPDF Secure Web Reader. Some students also experienced freezing while scrolling, slow page loading, and occasional login interruptions. The customer was using the embedded PDF viewer on