Category Archives: PDF Security

How to create an offline DRM PDF file? I want the offline DRM PDF file be deleted after expire date.

Hello, I'm interested in your software but i can't understand if it'll suite my needs. I have to deliver a PDF document to an institution, and I want to auto-delete at a specific date. But I have to upload this … Continue reading

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pdf password protected solution for SAP

Hi, We are looking for pdf password protected solution for SAP where SAP can send email with the password protected. Let me know how you can help with your solution. Best regards,Customer--------------------------------------------- Thanks for your message, we have three products … Continue reading

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It is possible to use PDF Security and Signature Tool and a USB Token with the certificate?

Hi, We are using pdf-security-signature for signing PDF files with a certificate. http://www.verypdf.com/app/pdf-security-and-signature/try-and-buy.html http://www.verypdf.com/dl2.php/pdf-security-signature-cmd-sdk-com.zip Problem 1: I found out, the certificate has to be an the Adobe Trust List, the get a green sign "Signed and all signatures are valid" … Continue reading

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How to encrypt a PDF file from C# or ASP.NET or VB.NET Web application?

Hi There, We currently use your encryptPDF dll for our windows based products and it works great. We would like to know if you have a similar product for web based applications. Specifically we need a 64 bit app that … Continue reading

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C# syntax for encrypt.dll, an attempt was made to load a program with the incorrect format

my syntax is as follows, [DllImport("encryptpdf.dll", EntryPoint = "veryEncryptPDF")]public static extern long EncryptPDF(string inFileName, string outFileName, long EncryptLen, long permission, string OWNER, string user); however when I try to use it i get an error 'An attempt was made to … Continue reading

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