If you use a PDF DRM system to protect books, courses, training materials, or paid documents, you may run into this problem: You delete an old PDF, upload a new version, and your existing users can no longer see the
How to Send Secure PDF Reading Links Without Making Customers Enter Their Email Every Time
If you sell ebooks, training materials, reports, manuals, or other PDF files online, you may want to protect your PDF without making the customer deal with a complicated login process. A common problem is this: How can I send a
How to Protect a Medical Textbook PDF and Give Buyers Temporary Online Access
A medical publisher may need to give customers digital access to a textbook before the printed book is ready. For example, a publisher may sell a printed medical textbook to students. While the book is being printed and shipped, the
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 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
3 Ways to Add Authorized Users to VeryPDF DRM Protector for PDF eBook Protection
When you use VeryPDF DRM Protector to sell protected PDF eBooks, you can create an authorized user for each customer. For example, if you want each customer to read an eBook on a maximum of 2 devices, you can set
How to Protect VPDF Files, Stop Unauthorized Access, and Secure Online Book Sales with Allowed IP Rules for the VeryPDF DRM API
If you sell protected PDF books, training materials, or digital documents through your own website, protecting the file itself is only one part of the problem. You also need to protect: The server where the protected file is stored The
How to See API Users and Download Activity for .vPDF Files in VeryPDF DRM Protector
Many website owners sell protected PDF files online. A common setup is simple: A customer pays on your website. Your website calls the VeryPDF DRM API. The customer automatically receives access to a .vpdf file. The customer can read the
How to Restrict API Access by IP Address and Track API Activity in VeryPDF DRM Protector
If you use the VeryPDF DRM Protector API on your website, security is important. Many customers ask the same questions: Can I limit API access to my web server only? Can I allow only specific API actions? Can I see
VeryPDF DRM API Security Improvements: IP Restrictions and Complete API Activity Logging
If your website uses the VeryPDF DRM API, security is probably one of your biggest concerns. Customers often ask questions like: Can I limit API access to my website server only? Can I see who used my API Password? Can