TroubleshootingSecure Email > Secure PDF > Troubleshooting
Troubleshooting
Issues that may arise for an RBC client:
- Unable to open the secure.pdf.
The file is AES-128 encrypted and your PDF viewing software must be able to support this algorithm. Acrobat 7.0 or latter offers this support. - Unable to access a .ZIP attachment that was included in the secure.pdf
Not all PDF viewing software support imbedded .zip files. You can install a pdf viewing software that supports .zip files or ask the RBC sender if it is possible to not send the file as a .zip attachment.
Please ensure you download the latest version of Adobe Reader from www.adobe.com/reader 
Glossary
Portable Document Format is the file format for representing documents in a manner that is independent of the original application software, hardware, and operating system used to create those documents.
AES-128
Advanced Encryption Standard that uses a 128 bit key to encrypt and protect the file with.
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