Java reading pdf metadata

Download Learn Buy. About GroupDocs. Load the PDF file to be searched for metadata properties. Make up a predicate to examine all extracted metadata properties. Pass the predicate to the FindProperties method.

Iterate through the found properties. System Requirements GroupDocs. Metadata for Java from Maven. No need to write any code. A number of methods are available for retrieving all of a PDF file's document attributes, just the keys of the attributes, and so on. However, in most circumstances, the value of document attributes are String s; this is true for all standard PDF attributes, but PDF file generators are allowed to add non-String attributes.

The allowable data types in PDF attribute values include String s, Number s either Integer or Float instances depending on the type of number , Boolean s, and Object[] arrays that contain any of the other possible attribute value types.

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Notify me of new posts by email. Reply 0. He enjoys speaking at conferences. He has an MA in Medieval History and a passion for reading.