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<< Click to Display Table of Contents >> EncryptionKeyLength |
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[VPE Professional Edition and above]
Sets the encryption key length for exported PDF documents. For documents which are compatible to Acrobat Reader 4, only a value of 40 is allowed. For documents which are compatible to Acrobat Reader 5, a value between 40 and 128 is allowed. If you want to create documents which are compatible to Acrobat Reader 5 only, we recommend to use 128-bit encryption.
property integer VPE.EncryptionKeyLength
read / write; runtime only
Possible values:
the key length in bits in the range from 40 to 128;
the value must be a multiple of 8 (e.g. 40, 48, 56, 64, ..., 128)
Default:
40 |
if PDFVersion is VPE_PDF_ACROBAT_4 (default) |
128 |
if PDFVersion is VPE_PDF_ACROBAT_5 |
Remarks:
The User Password as well as the Owner Password are used to create the encryption key. To gain safe encryption, at least one of either passwords should be specified - better both.
As you set the property PDFVersion, the encryption key length is adjusted accordingly and any previously assigned value is overwritten.