Security and Signatures

Debenu Quick PDF Library allows you to build flexible PDF security-based functionality into your applications, spanning a range of low- to high-end encryption technology. Debenu Quick PDF Library now supports digital signature technology. This means that, when a document is created, it can be digitally signed or certified. If it is later changed, the signature is invalidated, making it clear to any future readers that the resulting document has not been approved.

AddSignProcessOverlayText
CheckPassword
Decrypt
DecryptFile
EncodePermissions
Encrypt
EncryptFile
EncryptWithFingerprint
EncryptionAlgorithm
EncryptionStatus
EncryptionStrength
EndSignProcessToFile
EndSignProcessToStream
EndSignProcessToString
EndSignProcessToVariant
GetEncryptionFingerprint
GetSignProcessByteRange
GetSignProcessResult
NewSignProcessFromFile
NewSignProcessFromStream
NewSignProcessFromString
NewSignProcessFromVariant
ReleaseSignProcess
SecurityInfo
SetFormFieldSignatureImage
SetSignProcessAppearanceFromString
SetSignProcessAppearanceFromVariant
SetSignProcessCertFromStore
SetSignProcessCustomDict
SetSignProcessCustomSubFilter
SetSignProcessField
SetSignProcessFieldBounds
SetSignProcessFieldImageFromFile
SetSignProcessFieldImageFromStream
SetSignProcessFieldImageFromString
SetSignProcessFieldImageFromVariant
SetSignProcessFieldLocked
SetSignProcessFieldMetadata
SetSignProcessFieldPage
SetSignProcessImageLayer
SetSignProcessInfo
SetSignProcessKeyset
SetSignProcessOpenSSLFileName
SetSignProcessOptions
SetSignProcessPFXFromFile
SetSignProcessPFXFromStream
SetSignProcessPFXFromString
SetSignProcessPFXFromVariant
SetSignProcessPassthrough
SetSignProcessSubFilter
SetSignProcessTimestampURL
SignFile