What Is an Unrecognizable Token in Adobe Reader?

Adobe Reader documents, known as Portable Document Format or PDF files, are a popular form of computer document because they are easy to share and open. Adobe Reader software is free and on most home computers. An unrecognizable token error can occur when opening PDF if the file is being used in a database setting.

Database Software

The unrecognizable or unrecognized token error can occur if there is a problem with an SQL database connection or if the user is working with an Adobe AIR platform. SQL, short for Structured Query Language, is a database language and is used in settings where servers are commonly used.

About the Token

A token is a character in the database language that helps determine the job of the database. Characters must be filled and valid, meaning no blank characters will work. An unrecognized token may be invalid or missing.

Error in Adobe Reader

The unrecognizable token error will pop up when opening Adobe Reader documents when the file is not working properly in a database setting. The error happens to documents on shared networks, and the error is rare on documents used off a database network.

References

• Adobe: SQL Error Detail Messages, Ids and Arguments
• IBM: Tokens