8.4

processed - this often works with no error. However, when the "right" data is processed, then it tries to
update a document that has already been closed by the "wrong" data, and thus fails.
Safeguards
There are certain safeguards against contamination:
l PlanetPress Capture checks for pattern size and placement. If the data contains ink for a specific
pattern but the ink location does not correspond to the Capture Fields of the document it's updating, it
will fail.
l Errors can be set to stop and revert the whole current batch. If a single error occurs during the pen data
processing, it is possible for this processing to be stopped and all changes the Capture Database
reverted. In implementations where the pen signs high number of documents, this can especially be an
easy way to do this, as chances are the data will not match in at least one case.
Conclusion
l PlanetPress Workflow can only generate 20,000 unique patterns
l One pattern is used (locked) for each page containing a pattern.
l Processing the ink data from a pen and closing the document releases the pattern
l Most implementations will not need more than 20,000 patterns
l When necessary, patterns can be extended using multiple servers or Pattern Sequences (as long as
these are used in separate physical locations).
l It is extremely critical that contamination be avoided at all costs.
l Whenever possible, always avoid using pattern sequences unless it is absolutely necessary to do so.
Anoto penDirector
The Anoto penDirector is a software driver provided as a download by Objectif Lune Inc. The penDirector
creates a bridge between the Anoto Digital Pen and a PlanetPress Capture workflow in PlanetPress
Workflow.
In order to use penDirector, it needs to be downloaded from the Objectif Lune website, on this page. This
software must be installed after PlanetPress Workflow. The setup will install a pre-configured version of
penDirector which can be immediately used with PlanetPress Capture.
The communication between penDirector and PlanetPress Workflow is either through a folder transfer or
HTTPPost communication.