Category Archives: PDF Security

A great way to encrypt pdf files with GUI for pdf security

VeryPDF Encrypt PDF, which is a Windows application, enables you to encrypt pdf singly or in batches on Windows platforms. Why should we use Encrypt PDF? If you want to look for a great software of smaller size for pdf … Continue reading

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A quick way to encrypt pdf for great pdf security

Encrypt PDF could help you encrypt pdf for great pdf security quickly and professionally than you can ever expect! Sometimes, you may meet this situation: you want to protect your pdf files from other people illegal usage, for example, but … Continue reading

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What’s the difference between user password and owner password?

A PDF file may be encrypted for security, or digitally signed for authentication. The standard security provided by Acrobat PDF consists of two different methods and two different passwords, "user password", which encrypts the file and prevents opening, and "owner … Continue reading

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Can I use VB6.0 code to add unique password to my pdf file ?

Some friend has a doubt that “Can it possible to use VB6.0 code to calling Encrypt PDF  exe and passing unique password to adobe pdf file ?”If you also are interested in this question, please read this article. I use … Continue reading

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Need help to deny modification and copying of contents in PDF

How do I deny modification and copying of contents at the same time? Encrypt PDF file -encrypt <-openpwd=XXX -ownerpwd=XXX -keylen=X -encryption=XXX> Set user password, owner password and permissions to the stamped PDF file. Options for "-encrypt" function: -openpwd <string> : … Continue reading

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